Flight- Added mavlink lib.
Flight-Created UAVObjects to Mavlink bridge module.
This only translates a choosen set of objects and only in the
UAVO->Mavlink direction.
Can be used to drive the minimosd for example.
Changes according to review comments.

Added licence file to mavlinK lib.
Merge branch 'next' of git://github.com/PhoenixPilot/PhoenixPilot into pt/uavo_to_mavlink

Conflicts:
	shared/uavobjectdefinition/modulesettings.xml
	shared/uavobjectdefinition/taskinfo.xml
Merge pull request #172 from PTDreamer/pt/uavo_to_mavlink

Pt/uavo to mavlink
Raspberry PI build: Add a flag to exclude some of the plugins

For things like Raspberry PI we need to remove some of the more
memory intensive plugins or ones that require OpenGL (pending
Qt5).  To compile with this reduced set use this command:

make GCS_QMAKE_OPTS="CONFIG+=LIGHTWEIGHT_GCS" -j7 gcs
Rasbperry PI build: Add scope to the list of excluded builds
Raspberry PI: Update the lightweight set of plugins

Changes from Kipkool for building on the Raspberry PI.  See
https://github.com/PhoenixPilot/PhoenixPilot/pull/176
Merge pull request #176 from PhoenixPilot/james/raspberry_pi2

Raspberry PI build
pjrc_rawhid: fixed indent style as well as license header
Merge branch 'next' of git://github.com/PhoenixPilot/PhoenixPilot into rawhid_rewrite