DoorBird (#3147)

* Add documentation for DoorBird components

* Update release to 0.52

* Update example configurations

* Update doorbird.markdown

* Update DoorBird release from 0.52 to 0.54

source/_components/binary_sensor.doorbird.markdown

@@ -0,0 +1,28 @@
+---
+layout: page
+title: "DoorBird Binary Sensor"
+description: "Instructions how to integrate DoorBird video doorbell state into Home Assistant."
+date: 2017-08-06 11:30
+sidebar: true
+comments: false
+sharing: true
+footer: true
+logo: doorbird.png
+ha_category: Binary Sensor
+ha_release: "0.54"
+ha_iot_class: "Local Polling"
+---
+
+The `doorbird` binary sensor platform allows Home Assistant to monitor when your [DoorBird](http://www.doorbird.com/) doorbell rings.
+
+<p class='note'>
+  You must have the [DoorBird component](/components/doorbird/) configured to use this binary sensor.
+</p>
+
+To enable the binary sensor, add the following to your `configuration.yaml` file:
+
+```yaml
+# Example configuration.yaml entry
+binary_sensor:
+  - platform: doorbird
+```

source/_components/camera.doorbird.markdown

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+---
+layout: page
+title: "DoorBird Camera"
+description: "Instructions how to integrate DoorBird video doorbell images into Home Assistant."
+date: 2017-08-06 11:30
+sidebar: true
+comments: false
+sharing: true
+footer: true
+logo: doorbird.png
+ha_category: Camera
+ha_release: "0.54"
+ha_iot_class: "Local Polling"
+---
+
+The `doorbird` implementation allows you to view the live video and saved images from your [DoorBird](http://www.doorbird.com/) device in Home Assistant.
+
+<p class='note'>
+  You must have the [DoorBird component](/components/doorbird/) configured to use this camera.
+</p>
+
+To enable the camera, add the following to your `configuration.yaml` file:
+
+```yaml
+# Example configuration.yaml entry
+camera:
+  - platform: doorbird
+```
+
+Configuration variables:
+
+- **last_visitor** (*Optional*): Adds a second camera that shows the last picture taken when someone rang the doorbell. Default is `false`.

source/_components/doorbird.markdown

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+---
+layout: page
+title: "DoorBird"
+description: "Instructions on how to integrate your DoorBird video doorbell with Home Assistant."
+date: 2017-08-06 11:30
+sidebar: true
+comments: false
+sharing: true
+footer: true
+logo: doorbird.png
+ha_category: Hub
+ha_release: "0.54"
+ha_iot_class: "Local Polling"
+---
+
+The `doorbird` implementation allows you to integrate your [DoorBird](http://www.doorbird.com/) device in Home Assistant.
+
+To connect your device, add the following to your `configuration.yaml` file:
+
+```yaml
+# Example configuration.yaml entry
+doorbird:
+  host: IP_OR_HOSTNAME
+  username: abcdef0001
+  password: xxxxxxxxxx
+```
+
+Configuration variables:
+
+- **host** (*Required*): The LAN IP address or hostname of your device. You can find this by going to the [DoorBird Online check](http://www.doorbird.com/checkonline) and entering the information from the paper that was included in the box.
+- **username** (*Required*): The username of a non-administrator user account on the device.
+- **password** (*Required*): The password for the user specified.

source/_components/switch.doorbird.markdown

@@ -0,0 +1,35 @@
+---
+layout: page
+title: "DoorBird Switch"
+description: "Instructions how to integrate DoorBird video doorbell relays into Home Assistant."
+date: 2017-08-06 11:30
+sidebar: true
+comments: false
+sharing: true
+footer: true
+logo: doorbird.png
+ha_category: Switch
+ha_release: "0.54"
+ha_iot_class: "Local Push"
+---
+
+The `doorbird` switch platform allows you to power relays in your [DoorBird](http://www.doorbird.com/) video doorbell device.
+
+<p class='note'>
+	You must have the [DoorBird component](/components/doorbird/) configured to use this switch.
+</p>
+
+To enable this switch, add the following lines to your `configuration.yaml` file:
+
+```yaml
+# Example configuration.yaml entry
+switch:
+  - platform: doorbird
+    switches:
+      - light_on
+      - open_door
+```
+
+Configuration variables:
+
+- **switches** (*Required*): A list of switches to include. Possible entries are `light_on` for control of the IR array and `open_door` for control of an electronic door strike or alarm.