Fixed extra paren in GAudioOutput.cc
Broke windows compilation.
Added details for platform/build requirements.
Also added Qt version check.
And made the platform/toolchain check a little more descriptive.
Make sure we error on supported platforms.
update mavlink version
add support for MAV_CMD_DO_FLIGHTTERMINATION in designer
Merge pull request #760 from mavlink/flighttermination

Flighttermination mavlink command
Update QUpgrade
Remove non-needed files for MAVLink - we just want the C library
Remove drawing lib
Decode radio status and emit signal. Not used anywhere yet
Merge pull request #756 from Susurrus/build_fixes5

Some build improvements
Merge pull request #757 from Kynos/master

Remove isnan() and isinf() templates from QGC.h for Windows builds
A QObject needs to be the first parent of a class using the Q_OBJECT macro.
Fix initialized-but-unused warnings in test code for Release builds.
Fix post-compilation steps in Windows.
Revised the DLLs that are copied post-compilation so that QGC.exe can run.
Improved robustness by quoting all filenames/paths.
Minor changes to build scripts.
Unit testing now always built due to Windows Qt/VS bug.
Merge pull request #764 from Susurrus/qt5_win_fixes

QGC now builds on Windows in VS2010 with Qt 5.3.1
Check for the submodule
Fix compile errors