Fix valgrind leak in opmapcontrol.
Fix for uninitialized value error in opmapcontrol.
Found by valgrind.
Fix for partial initialization of a struct.
Found via valgrind.
Fix for memory leak in MAVLinkProtocol.
Found by valgrind.
Merge branch 'master' of https://github.com/mavlink/qgroundcontrol
Fixed issue with incomplete initialization of struct.
Changed to get the current voice properties, then modify then and set new ones.
Merge branch 'master' of https://github.com/mavlink/qgroundcontrol into valgrind_fixes
Merge pull request #785 from Susurrus/valgrind_fixes

Valgrind fixes
Merge remote-tracking branch 'QGS_master_github/master' into dev_merge