* Holds all the settings for the app
* Allows core plugin to override default values

Removing dead weight. This entire controller should be removed and the functionality moved to Vehicle.

Also added ui support for multiple complex item types

Causing data loss

Use component id from heartbeat

Added comment for dummy variable in vehicle.cc.  Enabled _firmwarePlugin call that shows 'Landing aborted.' message.

* Fix minor spelling error

* Added support for the AUAV x2.1 Flight Controller
    also removed a duplicate entry for MindPX
    from src/comm/USBBoardInfo.json

Adds entries required to correctly identify, download and flash PX4
firmware to the AUAV X2.1 Flight Controller

* Update USBBoardInfo.json

Removed un-needed fallback entries. This has been tested!