wip, arducopter hil model and protocol
Added file manager and associated widgets / handling
Add missing bits to unit test
Operational toy examples
Merge branch 'master' into mavlink-ftp
Tinker with the NOP message so that the receiver is happy with it.
Merge branch 'master' into mavlink-ftp

Conflicts:
	qgroundcontrol.pro
Added support to clear status areas with <emit resetStatusMessages();>
remote file listing
Add some debugging to try to work out where our messages are...
Protect against uninitialized data
Hook up receiving messages path
Merge branch 'master' of github.com:mavlink/qgroundcontrol into mavlink-ftp
decode errors in list mode
Merge remote-tracking branch 'upstream/master' into hil_quad

Conflicts:
	src/comm/QGCFlightGearLink.cc
fgfs: quad protocol: remove indicated airspeed
Merge branch 'master' of github.com:mavlink/qgroundcontrol into mavlink-ftp
Prevent the system from sending a stop HIL command if HIL is not actually active
Merge branch 'master' into mavlink-ftp
flightgear arducopter model: change y motor position sign