Add logentries component doc

source/_components/logentries.markdown

@@ -0,0 +1,27 @@
+---
+layout: page
+title: "Logentries"
+description: "Send events to Logentries."
+date: 2016-04-29 16:50
+sidebar: true
+comments: false
+sharing: true
+footer: true
+ha_category: "History"
+---
+
+The `logentries` component makes it possible to log all state changes to [your Logentries account](http://logentries.com/) using Logentries Webhook endpoint and a token based log
+
+To use the `logentries` component in your installation, add the following to your `configuration.yaml` file:
+
+```yaml
+# Example configuration.yaml entry
+logentries:
+  token: your-log-token-here
+  SSL: True
+```
+
+Configuration variables:
+
+- **token** (*Required*): Your Logentries log token
+- **SSL** (*Optional*)