Add unifi device tracker documentation

source/_components/device_tracker.netgear.markdown

@@ -9,6 +9,7 @@ sharing: true
 footer: true
 logo: netgear.png
 ha_category: Presence Detection
+ha_iot_class: "Local Polling"
 ---
 
 

source/_components/device_tracker.unifi.markdown

@@ -0,0 +1,36 @@
+---
+layout: page
+title: "Ubiquiti Unifi WAP"
+description: "Instructions how to use a Unifi WAP controller as a device tracker module."
+date: 2016-02-19 20:59
+sidebar: true
+comments: false
+sharing: true
+footer: true
+logo: ubiquiti.png
+ha_category: Presence Detection
+---
+
+
+This platform allows you to detect presence by looking at connected devices to a [Ubiquiti](http://ubnt.com/) [Unifi](https://www.ubnt.com/enterprise/#unifi) controller.
+
+To use this device tracker in your installation, add the following to your `configuration.yaml` file:
+
+```yaml
+# Example configuration.yaml entry
+device_tracker:
+  platform: unifi
+  host: CONTROLLER
+  port: PORT
+  username: YOUR_ADMIN_USERNAME
+  password: YOUR_ADMIN_PASSWORD
+```
+
+Configuration variables:
+
+- **host** (*Optional*): The hostname or IP address of your controller. Defaults to localhost.
+- **port** (*Optional*): The port of your controller's web interface. Defaults to 8443.
+- **username** (*Required*: The username of an user with administrative privileges, usually *admin*.
+- **password** (*Required*): The password for your given admin account.
+
+See the [device tracker component page](/components/device_tracker/) for instructions how to configure the people to be tracked.