diff --git a/gulp/.eslintrc b/gulp/.eslintrc
new file mode 100644
index 0000000000..82d136d432
--- /dev/null
+++ b/gulp/.eslintrc
@@ -0,0 +1,5 @@
+{
+  "rules": {
+   "no-restricted-syntax": 0
+  }
+}
diff --git a/gulp/common/html.js b/gulp/common/html.js
new file mode 100644
index 0000000000..15e48b293c
--- /dev/null
+++ b/gulp/common/html.js
@@ -0,0 +1,58 @@
+const {
+  Analyzer,
+  FSUrlLoader
+} = require('polymer-analyzer');
+
+const Bundler = require('polymer-bundler').Bundler;
+const parse5 = require('parse5');
+
+const { streamFromString } = require('./stream');
+
+// Bundle an HTML file and convert it to a stream
+async function bundledStreamFromHTML(path, bundlerOptions = {}) {
+  const bundler = new Bundler(bundlerOptions);
+  const manifest = await bundler.generateManifest([path]);
+  const result = await bundler.bundle(manifest);
+  return streamFromString(
+    path, parse5.serialize(result.documents.get(path).ast));
+}
+
+async function analyze(root, paths) {
+  const analyzer = new Analyzer({
+    urlLoader: new FSUrlLoader(root),
+  });
+  return analyzer.analyze(paths);
+}
+
+async function findDependencies(root, element) {
+  const deps = new Set();
+
+  async function resolve(files) {
+    const analysis = await analyze(root, files);
+    const toResolve = [];
+
+    for (const file of files) {
+      const doc = analysis.getDocument(file);
+
+      for (const importEl of doc.getFeatures({ kind: 'import' })) {
+        const url = importEl.url;
+        if (!deps.has(url)) {
+          deps.add(url);
+          toResolve.push(url);
+        }
+      }
+    }
+
+    if (toResolve.length > 0) {
+      return resolve(toResolve);
+    }
+  }
+
+  await resolve([element]);
+  return deps;
+}
+
+module.exports = {
+  bundledStreamFromHTML,
+  findDependencies,
+};
diff --git a/gulp/common/strategy.js b/gulp/common/strategy.js
new file mode 100644
index 0000000000..705eaac79f
--- /dev/null
+++ b/gulp/common/strategy.js
@@ -0,0 +1,33 @@
+/**
+ * Polymer build strategy to strip imports, even if explictely imported
+ */
+module.exports.stripImportsStrategy = function (urls) {
+  return (bundles) => {
+    for (const bundle of bundles) {
+      for (const url of urls) {
+        bundle.stripImports.add(url);
+      }
+    }
+    return bundles;
+  };
+};
+
+/**
+ * Polymer build strategy to strip everything but the entrypoints
+ * for bundles that match a specific entry point.
+ */
+module.exports.stripAllButEntrypointStrategy = function (entryPoint) {
+  return (bundles) => {
+    for (const bundle of bundles) {
+      if (bundle.entrypoints.size === 1 &&
+          bundle.entrypoints.has(entryPoint)) {
+        for (const file of bundle.files) {
+          if (!bundle.entrypoints.has(file)) {
+            bundle.stripImports.add(file);
+          }
+        }
+      }
+    }
+    return bundles;
+  };
+};
diff --git a/gulp/common/stream.js b/gulp/common/stream.js
new file mode 100644
index 0000000000..07539a91b4
--- /dev/null
+++ b/gulp/common/stream.js
@@ -0,0 +1,21 @@
+const stream = require('stream');
+
+const gutil = require('gulp-util');
+
+function streamFromString(filename, string) {
+  var src = stream.Readable({ objectMode: true });
+  src._read = function () {
+    this.push(new gutil.File({
+      cwd: '',
+      base: '',
+      path: filename,
+      contents: new Buffer(string)
+    }));
+    this.push(null);
+  };
+  return src;
+}
+
+module.exports = {
+  streamFromString,
+};
diff --git a/gulp/common/transform.js b/gulp/common/transform.js
new file mode 100644
index 0000000000..5c8138445b
--- /dev/null
+++ b/gulp/common/transform.js
@@ -0,0 +1,27 @@
+const gulpif = require('gulp-if');
+
+const babel = require('gulp-babel');
+const uglify = require('gulp-uglify');
+const { gulp: cssSlam } = require('css-slam');
+const htmlMinifier = require('gulp-html-minifier');
+const { HtmlSplitter } = require('polymer-build');
+
+module.exports.minifyStream = function (stream) {
+  const sourcesHtmlSplitter = new HtmlSplitter();
+  return stream
+    .pipe(sourcesHtmlSplitter.split())
+    .pipe(gulpif(/[^app]\.js$/, babel({
+      sourceType: 'script',
+      presets: [
+        ['es2015', { modules: false }]
+      ]
+    })))
+    .pipe(gulpif(/\.js$/, uglify({ sourceMap: false })))
+    .pipe(gulpif(/\.css$/, cssSlam()))
+    .pipe(gulpif(/\.html$/, cssSlam()))
+    .pipe(gulpif(/\.html$/, htmlMinifier({
+      collapseWhitespace: true,
+      removeComments: true
+    })))
+    .pipe(sourcesHtmlSplitter.rejoin());
+};
diff --git a/gulp/tasks/build.js b/gulp/tasks/build.js
index 75196b03cc..09437feb3e 100644
--- a/gulp/tasks/build.js
+++ b/gulp/tasks/build.js
@@ -1,11 +1,6 @@
-const babel = require('gulp-babel');
-const uglify = require('gulp-uglify');
-const { gulp: cssSlam } = require('css-slam');
 const gulp = require('gulp');
 const filter = require('gulp-filter');
-const htmlMinifier = require('gulp-html-minifier');
-const gulpif = require('gulp-if');
-const { PolymerProject, HtmlSplitter } = require('polymer-build');
+const { PolymerProject, } = require('polymer-build');
 const {
   composeStrategies,
   generateShellMergeStrategy,
@@ -15,25 +10,11 @@ const rename = require('gulp-rename');
 
 const polymerConfig = require('../../polymer');
 
-function minifyStream(stream) {
-  const sourcesHtmlSplitter = new HtmlSplitter();
-  return stream
-    .pipe(sourcesHtmlSplitter.split())
-    .pipe(gulpif(/[^app]\.js$/, babel({
-      sourceType: 'script',
-      presets: [
-        ['es2015', { modules: false }]
-      ]
-    })))
-    .pipe(gulpif(/\.js$/, uglify({ sourceMap: false })))
-    .pipe(gulpif(/\.css$/, cssSlam()))
-    .pipe(gulpif(/\.html$/, cssSlam()))
-    .pipe(gulpif(/\.html$/, htmlMinifier({
-      collapseWhitespace: true,
-      removeComments: true
-    })))
-    .pipe(sourcesHtmlSplitter.rejoin());
-}
+const minifyStream = require('../common/transform').minifyStream;
+const {
+  stripImportsStrategy,
+  stripAllButEntrypointStrategy
+} = require('../common/strategy');
 
 function renamePanel(path) {
   // Rename panels to be panels/* and not their subdir
@@ -49,49 +30,14 @@ function renamePanel(path) {
   }
 }
 
-/**
- * Polymer build strategy to strip imports, even if explictely imported
- */
-function generateStripStrategy(urls) {
-  return (bundles) => {
-    for (const bundle of bundles) {
-      for (const url of urls) {
-        bundle.stripImports.add(url);
-      }
-    }
-    return bundles;
-  };
-}
-
-/**
- * Polymer build strategy to strip everything but the entrypoints
- * for bundles that match a specific entry point.
- */
-function stripAllButEntrypoint(entryPoint) {
-  return (bundles) => {
-    for (const bundle of bundles) {
-      if (bundle.entrypoints.size === 1 &&
-          bundle.entrypoints.has(entryPoint)) {
-        for (const file of bundle.files) {
-          if (!bundle.entrypoints.has(file)) {
-            bundle.stripImports.add(file);
-          }
-        }
-      }
-    }
-    return bundles;
-  };
-}
-
-
 gulp.task('build', ['ru_all'], () => {
   const strategy = composeStrategies([
     generateShellMergeStrategy(polymerConfig.shell),
-    generateStripStrategy([
+    stripImportsStrategy([
       'bower_components/font-roboto/roboto.html',
       'bower_components/paper-styles/color.html',
     ]),
-    stripAllButEntrypoint('panels/hassio/ha-panel-hassio.html')
+    stripAllButEntrypointStrategy('panels/hassio/ha-panel-hassio.html')
   ]);
   const project = new PolymerProject(polymerConfig);
 
diff --git a/gulp/tasks/hassio-panel.js b/gulp/tasks/hassio-panel.js
index df3dc096c9..151b63e4f0 100755
--- a/gulp/tasks/hassio-panel.js
+++ b/gulp/tasks/hassio-panel.js
@@ -1,78 +1,47 @@
-/*
-TODO:
- - Use gulp streams
- - Use polymer bundler to vulcanize
-*/
 var gulp = require('gulp');
-var Vulcanize = require('vulcanize');
-var minify = require('html-minifier');
-var fs = require('fs');
+const rename = require('gulp-rename');
 
-function minifyHTML(html) {
-  return minify.minify(html, {
-    customAttrAssign: [/\$=/],
-    removeComments: true,
-    removeCommentsFromCDATA: true,
-    removeCDATASectionsFromCDATA: true,
-    collapseWhitespace: true,
-    removeScriptTypeAttributes: true,
-    removeStyleLinkTypeAttributes: true,
-    minifyJS: true,
-    minifyCSS: true,
-  });
-}
+const {
+  stripImportsStrategy,
+} = require('../common/strategy');
+const minifyStream = require('../common/transform').minifyStream;
+const {
+  bundledStreamFromHTML,
+  findDependencies
+} = require('../common/html');
 
-const baseVulcanOptions = {
-  inlineScripts: true,
-  inlineCss: true,
-  implicitStrip: true,
-  stripComments: true,
-};
+const { polymer_dir } = require('../config');
 
-const baseExcludes = [
+const DEPS_TO_STRIP = [
   'bower_components/font-roboto/roboto.html',
   'bower_components/paper-styles/color.html',
+  'bower_components/iron-meta/iron-meta.html',
+];
+const DEPS_TO_STRIP_RECURSIVELY = [
+  'bower_components/polymer/polymer.html',
 ];
 
-const toProcess = [
-  // This is the Hass.io configuration panel
-  // It's build standalone because it is embedded in the supervisor.
-  {
-    source: './panels/hassio/hassio-main.html',
-    output: './build-temp/hassio-main.html',
-    vulcan: new Vulcanize(Object.assign({}, baseVulcanOptions, {
-      stripExcludes: baseExcludes.concat([
-        'bower_components/polymer/polymer.html',
-        'bower_components/iron-meta/iron-meta.html',
-      ]),
-    })),
-  },
-];
+gulp.task(
+  'hassio-panel',
+  async () => {
+    const toStrip = [...DEPS_TO_STRIP];
 
-function vulcanizeEntry(entry) {
-  return new Promise((resolve, reject) => {
-    console.log('Processing', entry.source);
-    entry.vulcan.process(entry.source, (err, inlinedHtml) => {
-      if (err !== null) {
-        reject(`${entry.source}: ${err}`);
-        return;
+    for (let dep of DEPS_TO_STRIP_RECURSIVELY) {
+      toStrip.push(dep);
+      const deps = await findDependencies(polymer_dir, dep);
+      for (const importUrl of deps) {
+        toStrip.push(importUrl);
       }
+    }
 
-      console.log('Writing', entry.output);
-      fs.writeFileSync(entry.output, minifyHTML(inlinedHtml));
-      resolve();
-    });
-  });
-}
+    const stream = await bundledStreamFromHTML(
+      'panels/hassio/hassio-main.html', {
+        strategy: stripImportsStrategy(toStrip)
+      }
+    );
 
-gulp.task('hassio-panel', () => {
-  if (!fs.existsSync('build-temp')) {
-    fs.mkdirSync('build-temp');
+    return minifyStream(stream)
+        .pipe(rename('hassio-main.html'))
+        .pipe(gulp.dest('build-temp/'));
   }
-
-  toProcess.reduce(
-        (p, entry) => p.then(() => vulcanizeEntry(entry)),
-        Promise.resolve());
-
-  return toProcess;
-});
+);
diff --git a/package.json b/package.json
index fc6cb05224..46b9ad2626 100644
--- a/package.json
+++ b/package.json
@@ -47,8 +47,11 @@
     "gulp-rename": "^1.2.2",
     "gulp-rollup-each": "^1.0.2",
     "gulp-uglify": "^3.0.0",
+    "gulp-util": "^3.0.8",
     "html-minifier": "^3.5.3",
     "merge-stream": "^1.0.1",
+    "parse5": "^3.0.2",
+    "polymer-analyzer": "^2.2.2",
     "polymer-build": "^2.0.0",
     "polymer-bundler": "^3.0.1",
     "polymer-cli": "^1.3.1",
diff --git a/yarn.lock b/yarn.lock
index 5781ae7644..64f090b81a 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -193,10 +193,6 @@
     "@types/rx" "*"
     "@types/through" "*"
 
-"@types/launchpad@0.0.4":
-  version "0.0.4"
-  resolved "https://registry.yarnpkg.com/@types/launchpad/-/launchpad-0.0.4.tgz#43a4e498c3333fa6b30b13e0cf635b5755113e31"
-
 "@types/launchpad@^0.6.0":
   version "0.6.0"
   resolved "https://registry.yarnpkg.com/@types/launchpad/-/launchpad-0.6.0.tgz#37296109b7f277f6e6c5fd7e0c0706bc918fbb51"
@@ -262,6 +258,10 @@
   version "6.0.83"
   resolved "https://registry.yarnpkg.com/@types/node/-/node-6.0.83.tgz#dd022db01ac2c01c1057775e88ccffce96d1d6fe"
 
+"@types/node@^6.0.46":
+  version "6.0.87"
+  resolved "https://registry.yarnpkg.com/@types/node/-/node-6.0.87.tgz#5ab5774f8351a33a935099fa6be850aa0b0ad564"
+
 "@types/nomnom@0.0.28":
   version "0.0.28"
   resolved "https://registry.yarnpkg.com/@types/nomnom/-/nomnom-0.0.28.tgz#2d8968528ad7a9738dd0a6a3dfe5cdfdb8ac7974"
@@ -740,18 +740,10 @@ asap@~2.0.3:
   version "2.0.5"
   resolved "https://registry.yarnpkg.com/asap/-/asap-2.0.5.tgz#522765b50c3510490e52d7dcfe085ef9ba96958f"
 
-asn1@0.1.11:
-  version "0.1.11"
-  resolved "https://registry.yarnpkg.com/asn1/-/asn1-0.1.11.tgz#559be18376d08a4ec4dbe80877d27818639b2df7"
-
 asn1@~0.2.3:
   version "0.2.3"
   resolved "https://registry.yarnpkg.com/asn1/-/asn1-0.2.3.tgz#dac8787713c9966849fc8180777ebe9c1ddf3b86"
 
-assert-plus@^0.1.5:
-  version "0.1.5"
-  resolved "https://registry.yarnpkg.com/assert-plus/-/assert-plus-0.1.5.tgz#ee74009413002d84cec7219c6ac811812e723160"
-
 assert-plus@^0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/assert-plus/-/assert-plus-0.2.0.tgz#d74e1b87e7affc0db8aadb7021f3fe48101ab234"
@@ -1598,12 +1590,6 @@ backo2@1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/backo2/-/backo2-1.0.2.tgz#31ab1ac8b129363463e35b3ebb69f4dfcfba7947"
 
-backoff@^2.4.0:
-  version "2.5.0"
-  resolved "https://registry.yarnpkg.com/backoff/-/backoff-2.5.0.tgz#f616eda9d3e4b66b8ca7fca79f695722c5f8e26f"
-  dependencies:
-    precond "0.2"
-
 balanced-match@^0.4.1:
   version "0.4.2"
   resolved "https://registry.yarnpkg.com/balanced-match/-/balanced-match-0.4.2.tgz#cb3f3e3c732dc0f01ee70b403f302e61d7709838"
@@ -1702,17 +1688,6 @@ bower@1.8.0, bower@^1.8.0:
   version "1.8.0"
   resolved "https://registry.yarnpkg.com/bower/-/bower-1.8.0.tgz#55dbebef0ad9155382d9e9d3e497c1372345b44a"
 
-boxen@^0.3.1:
-  version "0.3.1"
-  resolved "https://registry.yarnpkg.com/boxen/-/boxen-0.3.1.tgz#a7d898243ae622f7abb6bb604d740a76c6a5461b"
-  dependencies:
-    chalk "^1.1.1"
-    filled-array "^1.0.0"
-    object-assign "^4.0.1"
-    repeating "^2.0.0"
-    string-width "^1.0.1"
-    widest-line "^1.0.0"
-
 boxen@^0.6.0:
   version "0.6.0"
   resolved "https://registry.yarnpkg.com/boxen/-/boxen-0.6.0.tgz#8364d4248ac34ff0ef1b2f2bf49a6c60ce0d81b6"
@@ -1782,15 +1757,6 @@ bulk-require@^0.2.1:
   dependencies:
     glob "~3.2.7"
 
-bunyan@^1.4.0:
-  version "1.8.5"
-  resolved "https://registry.yarnpkg.com/bunyan/-/bunyan-1.8.5.tgz#0d619e83005fb89070f5f47982fc1bf00600878a"
-  optionalDependencies:
-    dtrace-provider "~0.8"
-    moment "^2.10.6"
-    mv "~2"
-    safe-json-stringify "~1"
-
 busboy@^0.2.11:
   version "0.2.14"
   resolved "https://registry.yarnpkg.com/busboy/-/busboy-0.2.14.tgz#6c2a622efcf47c57bbbe1e2a9c37ad36c7925453"
@@ -2221,7 +2187,7 @@ core-js@^2.4.0, core-js@^2.4.1:
   version "2.4.1"
   resolved "https://registry.yarnpkg.com/core-js/-/core-js-2.4.1.tgz#4de911e667b0eae9124e34254b53aea6fc618d3e"
 
-core-util-is@1.0.2, core-util-is@~1.0.0:
+core-util-is@~1.0.0:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/core-util-is/-/core-util-is-1.0.2.tgz#b5fd54220aa2bc5ab57aab7140c940754503c1a7"
 
@@ -2273,31 +2239,6 @@ cssbeautify@^0.3.1:
   version "0.3.1"
   resolved "https://registry.yarnpkg.com/cssbeautify/-/cssbeautify-0.3.1.tgz#12dd1f734035c2e6faca67dcbdcef74e42811397"
 
-csv-generate@^0.0.6:
-  version "0.0.6"
-  resolved "https://registry.yarnpkg.com/csv-generate/-/csv-generate-0.0.6.tgz#97e4e63ae46b21912cd9475bc31469d26f5ade66"
-
-csv-parse@^1.0.0:
-  version "1.1.10"
-  resolved "https://registry.yarnpkg.com/csv-parse/-/csv-parse-1.1.10.tgz#767340d0d1f26d05434c798b7132222c669189de"
-
-csv-stringify@^0.0.8:
-  version "0.0.8"
-  resolved "https://registry.yarnpkg.com/csv-stringify/-/csv-stringify-0.0.8.tgz#52cc3b3dfc197758c55ad325a95be85071f9e51b"
-
-csv@^0.4.0:
-  version "0.4.6"
-  resolved "https://registry.yarnpkg.com/csv/-/csv-0.4.6.tgz#8dbae7ddfdbaae62c1ea987c3e0f8a9ac737b73d"
-  dependencies:
-    csv-generate "^0.0.6"
-    csv-parse "^1.0.0"
-    csv-stringify "^0.0.8"
-    stream-transform "^0.1.0"
-
-ctype@0.5.3:
-  version "0.5.3"
-  resolved "https://registry.yarnpkg.com/ctype/-/ctype-0.5.3.tgz#82c18c2461f74114ef16c135224ad0b9144ca12f"
-
 currently-unhandled@^0.4.1:
   version "0.4.1"
   resolved "https://registry.yarnpkg.com/currently-unhandled/-/currently-unhandled-0.4.1.tgz#988df33feab191ef799a61369dd76c17adf957ea"
@@ -2581,18 +2522,6 @@ dot-prop@^3.0.0:
   dependencies:
     is-obj "^1.0.0"
 
-dtrace-provider@^0.6.0:
-  version "0.6.0"
-  resolved "https://registry.yarnpkg.com/dtrace-provider/-/dtrace-provider-0.6.0.tgz#0b078d5517937d873101452d9146737557b75e51"
-  dependencies:
-    nan "^2.0.8"
-
-dtrace-provider@~0.8:
-  version "0.8.0"
-  resolved "https://registry.yarnpkg.com/dtrace-provider/-/dtrace-provider-0.8.0.tgz#fa95fbf67ed3ae3e97364f9664af7302e5ff5625"
-  dependencies:
-    nan "^2.3.3"
-
 duplexer2@0.0.2:
   version "0.0.2"
   resolved "https://registry.yarnpkg.com/duplexer2/-/duplexer2-0.0.2.tgz#c614dcf67e2fb14995a91711e5a617e8a60a31db"
@@ -2802,10 +2731,6 @@ escape-html@~1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/escape-html/-/escape-html-1.0.3.tgz#0258eae4d3d0c0974de1c169188ef0051d1d1988"
 
-escape-regexp-component@^1.0.2:
-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/escape-regexp-component/-/escape-regexp-component-1.0.2.tgz#9c63b6d0b25ff2a88c3adbd18c5b61acc3b9faa2"
-
 escape-string-regexp@1.0.5, escape-string-regexp@^1.0.0, escape-string-regexp@^1.0.2, escape-string-regexp@^1.0.5:
   version "1.0.5"
   resolved "https://registry.yarnpkg.com/escape-string-regexp/-/escape-string-regexp-1.0.5.tgz#1b61c0562190a8dff6ae3bb2cf0200ca130b86d4"
@@ -3110,14 +3035,6 @@ extsprintf@1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/extsprintf/-/extsprintf-1.0.2.tgz#e1080e0658e300b06294990cc70e1502235fd550"
 
-extsprintf@1.2.0:
-  version "1.2.0"
-  resolved "https://registry.yarnpkg.com/extsprintf/-/extsprintf-1.2.0.tgz#5ad946c22f5b32ba7f8cd7426711c6e8a3fc2529"
-
-extsprintf@^1.2.0:
-  version "1.3.0"
-  resolved "https://registry.yarnpkg.com/extsprintf/-/extsprintf-1.3.0.tgz#96918440e3041a7a414f8c52e3c574eb3c3e1e05"
-
 eyes@0.1.x:
   version "0.1.8"
   resolved "https://registry.yarnpkg.com/eyes/-/eyes-0.1.8.tgz#62cf120234c683785d902348a800ef3e0cc20bc0"
@@ -3217,12 +3134,6 @@ find-up@^2.0.0, find-up@^2.1.0:
   dependencies:
     locate-path "^2.0.0"
 
-findup-sync@^0.2.1:
-  version "0.2.1"
-  resolved "https://registry.yarnpkg.com/findup-sync/-/findup-sync-0.2.1.tgz#e0a90a450075c49466ee513732057514b81e878c"
-  dependencies:
-    glob "~4.3.0"
-
 findup-sync@^0.4.2, findup-sync@^0.4.3:
   version "0.4.3"
   resolved "https://registry.yarnpkg.com/findup-sync/-/findup-sync-0.4.3.tgz#40043929e7bc60adf0b7f4827c4c6e75a0deca12"
@@ -3306,10 +3217,6 @@ formatio@1.1.1:
   dependencies:
     samsam "~1.1"
 
-formidable@^1.0.14:
-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/formidable/-/formidable-1.1.1.tgz#96b8886f7c3c3508b932d6bd70c4d3a88f35f1a9"
-
 forwarded@~0.1.0:
   version "0.1.0"
   resolved "https://registry.yarnpkg.com/forwarded/-/forwarded-0.1.0.tgz#19ef9874c4ae1c297bcf078fde63a09b66a84363"
@@ -3498,7 +3405,7 @@ glob@7.0.5:
     once "^1.3.0"
     path-is-absolute "^1.0.0"
 
-glob@^4.3.1, glob@~4.3.0:
+glob@^4.3.1:
   version "4.3.5"
   resolved "https://registry.yarnpkg.com/glob/-/glob-4.3.5.tgz#80fbb08ca540f238acce5d11d1e9bc41e75173d3"
   dependencies:
@@ -3507,7 +3414,7 @@ glob@^4.3.1, glob@~4.3.0:
     minimatch "^2.0.1"
     once "^1.3.0"
 
-glob@^5.0.15, glob@^5.0.3:
+glob@^5.0.3:
   version "5.0.15"
   resolved "https://registry.yarnpkg.com/glob/-/glob-5.0.15.tgz#1bc936b9e02f4a603fcc222ecf7633d30b8b93b1"
   dependencies:
@@ -4047,14 +3954,6 @@ http-proxy@^1.16.2:
     eventemitter3 "1.x.x"
     requires-port "1.x.x"
 
-http-signature@^0.11.0:
-  version "0.11.0"
-  resolved "https://registry.yarnpkg.com/http-signature/-/http-signature-0.11.0.tgz#1796cf67a001ad5cd6849dca0991485f09089fe6"
-  dependencies:
-    asn1 "0.1.11"
-    assert-plus "^0.1.5"
-    ctype "0.5.3"
-
 http-signature@~1.1.0:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/http-signature/-/http-signature-1.1.1.tgz#df72e267066cd0ac67fb76adf8e134a8fbcf91bf"
@@ -4508,10 +4407,6 @@ jsx-ast-utils@^1.3.4:
   version "1.4.1"
   resolved "https://registry.yarnpkg.com/jsx-ast-utils/-/jsx-ast-utils-1.4.1.tgz#3867213e8dd79bf1e8f2300c0cfc1efb182c0df1"
 
-keep-alive-agent@^0.0.1:
-  version "0.0.1"
-  resolved "https://registry.yarnpkg.com/keep-alive-agent/-/keep-alive-agent-0.0.1.tgz#44847ca394ce8d6b521ae85816bd64509942b385"
-
 kind-of@^3.0.2:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/kind-of/-/kind-of-3.1.0.tgz#475d698a5e49ff5e53d14e3e732429dc8bf4cf47"
@@ -4524,18 +4419,6 @@ latest-version@^2.0.0:
   dependencies:
     package-json "^2.0.0"
 
-launchpad@^0.5.0:
-  version "0.5.4"
-  resolved "https://registry.yarnpkg.com/launchpad/-/launchpad-0.5.4.tgz#a7c2532e21df8ef714ae00171e45630a191bbd21"
-  dependencies:
-    async "^2.0.1"
-    browserstack "^1.2.0"
-    debug "^2.2.0"
-    plist "^2.0.1"
-    q "^1.4.1"
-    restify "^4.0.0"
-    underscore "^1.8.3"
-
 launchpad@^0.6.0:
   version "0.6.0"
   resolved "https://registry.yarnpkg.com/launchpad/-/launchpad-0.6.0.tgz#6a122deaa3cbd7b9bedc13e7c8dd20a90951aaa3"
@@ -5135,7 +5018,7 @@ mkdirp@0.5.0:
   dependencies:
     minimist "0.0.8"
 
-mkdirp@0.5.1, "mkdirp@>=0.5 0", mkdirp@^0.5.0, mkdirp@^0.5.1, mkdirp@~0.5.1:
+mkdirp@0.5.1, "mkdirp@>=0.5 0", mkdirp@^0.5.0, mkdirp@^0.5.1:
   version "0.5.1"
   resolved "https://registry.yarnpkg.com/mkdirp/-/mkdirp-0.5.1.tgz#30057438eac6cf7f8c4767f38648d6697d75c903"
   dependencies:
@@ -5157,10 +5040,6 @@ mocha@^3.1.2:
     mkdirp "0.5.1"
     supports-color "3.1.2"
 
-moment@^2.10.6:
-  version "2.17.1"
-  resolved "https://registry.yarnpkg.com/moment/-/moment-2.17.1.tgz#fed9506063f36b10f066c8b59a144d7faebe1d82"
-
 ms@0.7.0:
   version "0.7.0"
   resolved "https://registry.yarnpkg.com/ms/-/ms-0.7.0.tgz#865be94c2e7397ad8a57da6a633a6e2f30798b83"
@@ -5220,14 +5099,6 @@ mute-stream@0.0.6:
   version "0.0.6"
   resolved "https://registry.yarnpkg.com/mute-stream/-/mute-stream-0.0.6.tgz#48962b19e169fd1dfc240b3f1e7317627bbc47db"
 
-mv@~2:
-  version "2.1.1"
-  resolved "https://registry.yarnpkg.com/mv/-/mv-2.1.1.tgz#ae6ce0d6f6d5e0a4f7d893798d03c1ea9559b6a2"
-  dependencies:
-    mkdirp "~0.5.1"
-    ncp "~2.0.0"
-    rimraf "~2.4.0"
-
 mz@^2.4.0, mz@^2.6.0:
   version "2.6.0"
   resolved "https://registry.yarnpkg.com/mz/-/mz-2.6.0.tgz#c8b8521d958df0a4f2768025db69c719ee4ef1ce"
@@ -5236,7 +5107,7 @@ mz@^2.4.0, mz@^2.6.0:
     object-assign "^4.0.1"
     thenify-all "^1.0.0"
 
-nan@^2.0.5, nan@^2.0.8, nan@^2.3.3:
+nan@^2.0.5:
   version "2.5.0"
   resolved "https://registry.yarnpkg.com/nan/-/nan-2.5.0.tgz#aa8f1e34531d807e9e27755b234b4a6ec0c152a8"
 
@@ -5258,11 +5129,7 @@ ncname@1.0.x:
   dependencies:
     xml-char-classes "^1.0.0"
 
-ncp@~2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/ncp/-/ncp-2.0.0.tgz#195a21d6c46e361d2fb1281ba38b91e9df7bdbb3"
-
-negotiator@0.6.1, negotiator@^0.6.1:
+negotiator@0.6.1:
   version "0.6.1"
   resolved "https://registry.yarnpkg.com/negotiator/-/negotiator-0.6.1.tgz#2b327184e8992101177b28563fb5e7102acd0ca9"
 
@@ -5294,10 +5161,6 @@ node-status-codes@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/node-status-codes/-/node-status-codes-1.0.0.tgz#5ae5541d024645d32a58fcddc9ceecea7ae3ac2f"
 
-node-uuid@^1.4.1:
-  version "1.4.7"
-  resolved "https://registry.yarnpkg.com/node-uuid/-/node-uuid-1.4.7.tgz#6da5a17668c4b3dd59623bda11cf7fa4c1f60a6f"
-
 nodegit-promise@~4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/nodegit-promise/-/nodegit-promise-4.0.0.tgz#5722b184f2df7327161064a791d2e842c9167b34"
@@ -5554,6 +5417,12 @@ parse5@^2.2.1, parse5@^2.2.2, parse5@^2.2.3:
   version "2.2.3"
   resolved "https://registry.yarnpkg.com/parse5/-/parse5-2.2.3.tgz#0c4fc41c1000c5e6b93d48b03f8083837834e9f6"
 
+parse5@^3.0.2:
+  version "3.0.2"
+  resolved "https://registry.yarnpkg.com/parse5/-/parse5-3.0.2.tgz#05eff57f0ef4577fb144a79f8b9a967a6cc44510"
+  dependencies:
+    "@types/node" "^6.0.46"
+
 parsejson@0.0.3:
   version "0.0.3"
   resolved "https://registry.yarnpkg.com/parsejson/-/parsejson-0.0.3.tgz#ab7e3759f209ece99437973f7d0f1f64ae0e64ab"
@@ -5572,7 +5441,7 @@ parseuri@0.0.5:
   dependencies:
     better-assert "~1.0.0"
 
-parseurl@^1.3.0, parseurl@~1.3.1:
+parseurl@~1.3.1:
   version "1.3.1"
   resolved "https://registry.yarnpkg.com/parseurl/-/parseurl-1.3.1.tgz#c8ab8c9223ba34888aa64a297b28853bec18da56"
 
@@ -5759,6 +5628,32 @@ polymer-analyzer@^2.0.0, polymer-analyzer@^2.0.2:
     shady-css-parser "0.0.8"
     strip-indent "^2.0.0"
 
+polymer-analyzer@^2.2.2:
+  version "2.2.2"
+  resolved "https://registry.yarnpkg.com/polymer-analyzer/-/polymer-analyzer-2.2.2.tgz#1f9420088b5ed354b53050941db27fe29a1beba4"
+  dependencies:
+    "@types/chai-subset" "^1.3.0"
+    "@types/chalk" "^0.4.30"
+    "@types/clone" "^0.1.30"
+    "@types/cssbeautify" "^0.3.1"
+    "@types/doctrine" "^0.0.1"
+    "@types/escodegen" "^0.0.2"
+    "@types/estree" "^0.0.34"
+    "@types/node" "^6.0.0"
+    "@types/parse5" "^2.2.34"
+    chalk "^1.1.3"
+    clone "^2.0.0"
+    cssbeautify "^0.3.1"
+    doctrine "^2.0.0"
+    dom5 "^2.1.0"
+    escodegen "^1.7.0"
+    espree "^3.1.7"
+    estraverse "^4.2.0"
+    jsonschema "^1.1.0"
+    parse5 "^2.2.1"
+    shady-css-parser "0.0.8"
+    strip-indent "^2.0.0"
+
 polymer-build@^1.1.0, polymer-build@^1.6.0:
   version "1.6.0"
   resolved "https://registry.yarnpkg.com/polymer-build/-/polymer-build-1.6.0.tgz#1c9106b19bedd049988562e45acc1c7c243e3a94"
@@ -5986,10 +5881,6 @@ preact@^8.1.0:
   version "8.1.0"
   resolved "https://registry.yarnpkg.com/preact/-/preact-8.1.0.tgz#f035b808eebb74e46d56246b02ca0f190b6d6574"
 
-precond@0.2:
-  version "0.2.3"
-  resolved "https://registry.yarnpkg.com/precond/-/precond-0.2.3.tgz#aa9591bcaa24923f1e0f4849d240f47efc1075ac"
-
 prelude-ls@~1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/prelude-ls/-/prelude-ls-1.1.2.tgz#21932a549f5e52ffd9a827f570e04be62a97da54"
@@ -6077,7 +5968,7 @@ qs@6.2.1:
   version "6.2.1"
   resolved "https://registry.yarnpkg.com/qs/-/qs-6.2.1.tgz#ce03c5ff0935bc1d9d69a9f14cbd18e568d67625"
 
-qs@^6.2.1, qs@~6.3.0:
+qs@~6.3.0:
   version "6.3.0"
   resolved "https://registry.yarnpkg.com/qs/-/qs-6.3.0.tgz#f403b264f23bc01228c74131b407f18d5ea5d442"
 
@@ -6429,32 +6320,6 @@ resolve@^1.0.0, resolve@^1.1.6, resolve@^1.1.7:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/resolve/-/resolve-1.2.0.tgz#9589c3f2f6149d1417a40becc1663db6ec6bc26c"
 
-restify@^4.0.0:
-  version "4.3.0"
-  resolved "https://registry.yarnpkg.com/restify/-/restify-4.3.0.tgz#03b67960d1d42a6dafcde3bd82fb882173a27678"
-  dependencies:
-    assert-plus "^0.1.5"
-    backoff "^2.4.0"
-    bunyan "^1.4.0"
-    csv "^0.4.0"
-    escape-regexp-component "^1.0.2"
-    formidable "^1.0.14"
-    http-signature "^0.11.0"
-    keep-alive-agent "^0.0.1"
-    lru-cache "^4.0.1"
-    mime "^1.2.11"
-    negotiator "^0.6.1"
-    node-uuid "^1.4.1"
-    once "^1.3.0"
-    qs "^6.2.1"
-    semver "^4.3.3"
-    spdy "^3.3.3"
-    tunnel-agent "^0.4.0"
-    vasync "1.6.3"
-    verror "^1.4.0"
-  optionalDependencies:
-    dtrace-provider "^0.6.0"
-
 restore-cursor@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/restore-cursor/-/restore-cursor-1.0.1.tgz#34661f46886327fed2991479152252df92daa541"
@@ -6484,12 +6349,6 @@ rimraf@~2.2.6:
   version "2.2.8"
   resolved "https://registry.yarnpkg.com/rimraf/-/rimraf-2.2.8.tgz#e439be2aaee327321952730f99a8929e4fc50582"
 
-rimraf@~2.4.0:
-  version "2.4.5"
-  resolved "https://registry.yarnpkg.com/rimraf/-/rimraf-2.4.5.tgz#ee710ce5d93a8fdb856fb5ea8ff0e2d75934b2da"
-  dependencies:
-    glob "^6.0.1"
-
 rollup-plugin-babel@^2.7.1:
   version "2.7.1"
   resolved "https://registry.yarnpkg.com/rollup-plugin-babel/-/rollup-plugin-babel-2.7.1.tgz#16528197b0f938a1536f44683c7a93d573182f57"
@@ -6599,10 +6458,6 @@ safe-buffer@5.1.1, safe-buffer@^5.0.1, safe-buffer@~5.1.0, safe-buffer@~5.1.1:
   version "5.1.1"
   resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.1.1.tgz#893312af69b2123def71f57889001671eeb2c853"
 
-safe-json-stringify@~1:
-  version "1.0.3"
-  resolved "https://registry.yarnpkg.com/safe-json-stringify/-/safe-json-stringify-1.0.3.tgz#3cb6717660a086d07cb5bd9b7a6875bcf67bd05e"
-
 samsam@1.1.2, samsam@~1.1:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/samsam/-/samsam-1.1.2.tgz#bec11fdc83a9fda063401210e40176c3024d1567"
@@ -6647,7 +6502,7 @@ semver-diff@^2.0.0:
   version "5.3.0"
   resolved "https://registry.yarnpkg.com/semver/-/semver-5.3.0.tgz#9b2ce5d3de02d17c6012ad326aa6b4d0cf54f94f"
 
-semver@^4.1.0, semver@^4.3.3:
+semver@^4.1.0:
   version "4.3.6"
   resolved "https://registry.yarnpkg.com/semver/-/semver-4.3.6.tgz#300bc6e0e86374f7ba61068b5b1ecd57fc6532da"
 
@@ -6725,13 +6580,6 @@ serve-static@~1.11.1:
     parseurl "~1.3.1"
     send "0.14.1"
 
-serve-waterfall@^1.1.0:
-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/serve-waterfall/-/serve-waterfall-1.1.1.tgz#3ae633529eff5616afb1fbdfcf0169d0045c17e4"
-  dependencies:
-    parseurl "^1.3.0"
-    send "^0.11.1"
-
 server-destroy@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/server-destroy/-/server-destroy-1.0.1.tgz#f13bf928e42b9c3e79383e61cc3998b5d14e6cdd"
@@ -6996,10 +6844,6 @@ stream-shift@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/stream-shift/-/stream-shift-1.0.0.tgz#d5c752825e5367e786f78e18e445ea223a155952"
 
-stream-transform@^0.1.0:
-  version "0.1.1"
-  resolved "https://registry.yarnpkg.com/stream-transform/-/stream-transform-0.1.1.tgz#0a54a2b81eea88da55a50df2441cb63edc101c71"
-
 streamfilter@^1.0.5:
   version "1.0.5"
   resolved "https://registry.yarnpkg.com/streamfilter/-/streamfilter-1.0.5.tgz#87507111beb8e298451717b511cfed8f002abf53"
@@ -7360,16 +7204,16 @@ tryit@^1.0.1:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/tryit/-/tryit-1.0.3.tgz#393be730a9446fd1ead6da59a014308f36c289cb"
 
-tunnel-agent@^0.4.0, tunnel-agent@~0.4.1:
-  version "0.4.3"
-  resolved "https://registry.yarnpkg.com/tunnel-agent/-/tunnel-agent-0.4.3.tgz#6373db76909fe570e08d73583365ed828a74eeeb"
-
 tunnel-agent@^0.6.0:
   version "0.6.0"
   resolved "https://registry.yarnpkg.com/tunnel-agent/-/tunnel-agent-0.6.0.tgz#27a5dea06b36b04a0a9966774b290868f0fc40fd"
   dependencies:
     safe-buffer "^5.0.1"
 
+tunnel-agent@~0.4.1:
+  version "0.4.3"
+  resolved "https://registry.yarnpkg.com/tunnel-agent/-/tunnel-agent-0.4.3.tgz#6373db76909fe570e08d73583365ed828a74eeeb"
+
 tweetnacl@^0.14.3, tweetnacl@~0.14.0:
   version "0.14.5"
   resolved "https://registry.yarnpkg.com/tweetnacl/-/tweetnacl-0.14.5.tgz#5ae68177f192d4456269d108afa93ff8743f4f64"
@@ -7499,17 +7343,6 @@ unzip-response@^2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/unzip-response/-/unzip-response-2.0.1.tgz#d2f0f737d16b0615e72a6935ed04214572d56f97"
 
-update-notifier@^0.6.0:
-  version "0.6.3"
-  resolved "https://registry.yarnpkg.com/update-notifier/-/update-notifier-0.6.3.tgz#776dec8daa13e962a341e8a1d98354306b67ae08"
-  dependencies:
-    boxen "^0.3.1"
-    chalk "^1.0.0"
-    configstore "^2.0.0"
-    is-npm "^1.0.0"
-    latest-version "^2.0.0"
-    semver-diff "^2.0.0"
-
 update-notifier@^1.0.0, update-notifier@^1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/update-notifier/-/update-notifier-1.0.3.tgz#8f92c515482bd6831b7c93013e70f87552c7cf5a"
@@ -7608,32 +7441,12 @@ vary@~1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/vary/-/vary-1.1.1.tgz#67535ebb694c1d52257457984665323f587e8d37"
 
-vasync@1.6.3:
-  version "1.6.3"
-  resolved "https://registry.yarnpkg.com/vasync/-/vasync-1.6.3.tgz#4a69d7052a47f4ce85503d7641df1cbf40432a94"
-  dependencies:
-    verror "1.6.0"
-
 verror@1.3.6:
   version "1.3.6"
   resolved "https://registry.yarnpkg.com/verror/-/verror-1.3.6.tgz#cff5df12946d297d2baaefaa2689e25be01c005c"
   dependencies:
     extsprintf "1.0.2"
 
-verror@1.6.0:
-  version "1.6.0"
-  resolved "https://registry.yarnpkg.com/verror/-/verror-1.6.0.tgz#7d13b27b1facc2e2da90405eb5ea6e5bdd252ea5"
-  dependencies:
-    extsprintf "1.2.0"
-
-verror@^1.4.0:
-  version "1.9.0"
-  resolved "https://registry.yarnpkg.com/verror/-/verror-1.9.0.tgz#107a8a2d14c33586fc4bb830057cd2d19ae2a6ee"
-  dependencies:
-    assert-plus "^1.0.0"
-    core-util-is "1.0.2"
-    extsprintf "^1.2.0"
-
 vinyl-file@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/vinyl-file/-/vinyl-file-2.0.0.tgz#a7ebf5ffbefda1b7d18d140fcb07b223efb6751a"
@@ -7768,36 +7581,6 @@ wct-local@^2.0.15:
     selenium-standalone "^5.8.0"
     which "^1.0.8"
 
-wct-local@^2.0.8:
-  version "2.0.14"
-  resolved "https://registry.yarnpkg.com/wct-local/-/wct-local-2.0.14.tgz#af23a842f0b59cbe993479df127518583ba512c9"
-  dependencies:
-    "@types/chalk" "^0.4.28"
-    "@types/express" "^4.0.30"
-    "@types/freeport" "^1.0.19"
-    "@types/launchpad" "0.0.4"
-    "@types/node" "^6.0.31"
-    "@types/which" "^1.0.27"
-    chalk "^1.1.1"
-    cleankill "^1.0.3"
-    freeport "^1.0.4"
-    launchpad "^0.5.0"
-    promisify-node "^0.4.0"
-    selenium-standalone "^5.8.0"
-    which "^1.0.8"
-
-wct-sauce@^1.8.2:
-  version "1.8.6"
-  resolved "https://registry.yarnpkg.com/wct-sauce/-/wct-sauce-1.8.6.tgz#d37ef52a007acb088288cebf9f94da218565d700"
-  dependencies:
-    chalk "^1.1.1"
-    cleankill "^1.0.0"
-    lodash "^3.0.1"
-    request "^2.53.0"
-    sauce-connect-launcher "^1.0.0"
-    temp "^0.8.1"
-    uuid "^2.0.1"
-
 wct-sauce@^2.0.0-pre.1:
   version "2.0.0-pre.1"
   resolved "https://registry.yarnpkg.com/wct-sauce/-/wct-sauce-2.0.0-pre.1.tgz#3b804607c550a0325de9137f3316be9562c06035"
@@ -7830,56 +7613,6 @@ weak@^1.0.1:
     bindings "^1.2.1"
     nan "^2.0.5"
 
-web-component-tester@^5.0.1:
-  version "5.0.1"
-  resolved "https://registry.yarnpkg.com/web-component-tester/-/web-component-tester-5.0.1.tgz#e7a833283d8cfff31aabe0bf678eb1206f3d2564"
-  dependencies:
-    "@types/body-parser" "0.0.33"
-    "@types/chai" "^3.4.34"
-    "@types/chalk" "^0.4.31"
-    "@types/express" "^4.0.33"
-    "@types/glob" "^5.0.30"
-    "@types/grunt" "^0.4.20"
-    "@types/gulp" "^3.8.32"
-    "@types/lodash" "^4.14.38"
-    "@types/mime" "0.0.29"
-    "@types/minimatch" "^2.0.29"
-    "@types/mocha" "^2.2.32"
-    "@types/multer" "0.0.32"
-    "@types/node" "^4.0.30"
-    "@types/nomnom" "0.0.28"
-    "@types/sinon" "^1.16.31"
-    "@types/sinon-chai" "^2.7.27"
-    "@types/socket.io" "^1.4.27"
-    accessibility-developer-tools "^2.10.0"
-    async "^1.5.0"
-    body-parser "^1.14.2"
-    chai "^3.2.0"
-    chalk "^1.1.1"
-    cleankill "^1.0.0"
-    express "^4.8.5"
-    findup-sync "^0.2.1"
-    glob "^5.0.15"
-    lodash "^3.0.1"
-    mocha "^3.1.2"
-    multer "^1.1.0"
-    nomnom "^1.8.1"
-    promisify-node "^0.4.0"
-    resolve "^1.0.0"
-    send "^0.11.1"
-    serve-waterfall "^1.1.0"
-    server-destroy "^1.0.1"
-    sinon "^1.11.1"
-    sinon-chai "^2.6.0"
-    socket.io "^1.3.7"
-    stacky "^1.3.1"
-    test-fixture PolymerElements/test-fixture
-    wd "^1.0.0"
-  optionalDependencies:
-    update-notifier "^0.6.0"
-    wct-local "^2.0.8"
-    wct-sauce "^1.8.2"
-
 web-component-tester@^6.0.0:
   version "6.0.0"
   resolved "https://registry.yarnpkg.com/web-component-tester/-/web-component-tester-6.0.0.tgz#6abc08eafd7113a9ccf7873c225e9ccffd207523"