Collection of small technical cleanups (#9744)

* Cleanup .gitignore

* Removes .travis.yaml

* Removes .project file

* Renamed README.markdown -> README.md

.gitignore

@@ -4,8 +4,6 @@
 .gist-cache
 .pygments-cache
 public
-sass.old
-source.old
 source/_stash
 source/stylesheets/screen.css
 vendor
@@ -13,12 +11,6 @@ node_modules
 source/.jekyll-metadata
 *.iml
 .idea/
-/.vs/home-assistant.github.io/v15/.suo
-/.vs/ProjectSettings.json
-/.vs/slnx.sqlite
-/.vs/config/applicationhost.config
-/.vs/slnx.sqlite-journal
-/.vs/VSWorkspaceState.json
 .vscode/*
 !.vscode/cSpell.json
 !.vscode/extensions.json

.project

@@ -1,11 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<projectDescription>
-	<name>home-assistant.github.io</name>
-	<comment></comment>
-	<projects>
-	</projects>
-	<buildSpec>
-	</buildSpec>
-	<natures>
-	</natures>
-</projectDescription>

.travis.yml

@@ -1,8 +0,0 @@
-language: ruby
-sudo: false
-cache: bundler
-before_install:
-  - gem install bundler:2.0.1
-script: travis_wait bundle exec rake generate
-after_success:
-  - '[ "${TRAVIS_BRANCH}" = "current" ] && [ "${TRAVIS_PULL_REQUEST}" = "false" ] && bundle exec rake deploy || false'