Remove old comment
Added FTDI library back, overwriting the open-usb-library
Add the FTDI library to the gradle build
Create two classes to support both CDC and FTDI devices.

Super object at UsbConnection has the factory to generate the correct usb object.
Detect if a FTDI device is connected and use the correct class to comunicate
Merge pull request #975 from arthurbenemann/usb_ftdi

Fix problems with USB libraries

Now using both the FTDI and the usbseriallibrary libraries depending on the connected device.
Make parameter download inpendent of having a listner
Download parameter list on first heartbeat received.
Download parameters on start only if not flying
Merge pull request #976 from DroidPlanner/param_download_on_start

Auto Parameter download on startup
Version: Releasing version 2.6.2
Merge branch 'master' into beta

Conflicts:
	Android/AndroidManifest.xml
Update release notes