Add aruba device tracker platform

source/_posts/2015-08-31-version-7-revamped-ui-and-improved-distribution.markdown

@@ -122,3 +122,15 @@ sensor:
     - temperature
     - humidity
 ```
+
+__Aruba device tracker__<br>
+[Michael Arnauts](https://github.com/michaelarnauts) has contributed support for Aruba wireless routers for presence detection.
+
+```yaml
+# Example configuration.yaml entry
+device_tracker:
+  platform: aruba
+  host: YOUR_ACCESS_POINT_IP
+  username: YOUR_ADMIN_USERNAME
+  password: YOUR_ADMIN_PASSWORD
+```

source/components/device_tracker.aruba.markdown

@@ -0,0 +1,28 @@
+---
+layout: page
+title: "Aruba support"
+description: "Instructions how to integrate Aruba routers into Home Assistant."
+date: 2015-08-31 08:45
+sidebar: false
+comments: false
+sharing: true
+footer: true
+---
+
+This platform allows you to detect presence by looking at connected devices to an [Aruba Instant](http://www.arubanetworks.com/products/networking/aruba-instant/) device. This has been tested on an ARUBA AP-105.
+
+<p class='note warning'>
+This device tracker needs telnet to be enabled on the router.
+</p>
+
+```yaml
+# Example configuration.yaml entry
+device_tracker:
+  platform: aruba
+  host: YOUR_ROUTER_IP
+  username: YOUR_ADMIN_USERNAME
+  password: YOUR_ADMIN_PASSWORD
+```
+
+See the [device tracker component page](/components/device_tracker.html) for instructions how to configure the people to be tracked.
+