Put audio output into a worker thread.
Handle unused variable warnings
Windows audio fix
Fix beep API and unconnected slot
Fix incorrect directory
Add deleteTempLogFiles method
Test MAVLinkProtocol::deleteTempLogFiles
Delete temp log file before each unit test run
Separate install of SDL on OS X not needed
Verify that protocol files are not out of date
Uninstall is in Add/Remove Programs

- Fixed start menu shortcut delete on uninstall
- Uninstall no longer on start menu
Remove unnecessary QGCStatusBar

The derived class wasn’t really adding any capabilties
Enable Qt multimedia
Move Windows sound API to right thread context and make it an object member. Perform init within the right thread context. Add capability to play .wav files in addition via QMultiMedia
Improve audio output logic and consistency
Make Windows playback synchronous so that audio does not overlap
Make eSpeak on Linux synchronous
Revert "Make eSpeak on Linux synchronous"

This reverts commit 4d033715a8748a2bfdd0c0698d69cbf5eba4260a.
espeak: use AUDIO_OUTPUT_SYNCH_PLAYBACK
Move audio file to resource