Removing all SLUGS autopilot-specific code.
SLUGS has maintained their patches out-of-tree for a long while now.
These will eventually get merged back in, but it'll be easier to evaluate them as fresh commits instead of modifications to this old & dead code, so we'll delete this for now.
Removing old file containing dev notes.
Temp disable of FileManager unit test

This is to get TeamCity up and running again. This unit test fails only
in TeamCity for some currently unknown reason. One TC is back up, I’ll
revisit and turn it back on.
Merge pull request #784 from DonLakeFlyer/FileManagerUTDisable

Temp disable of FileManager unit test
Merge branch 'master' of https://github.com/mavlink/qgroundcontrol into del_slugs
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
Ignore .qmake.stash

Qt5 qmake seems to leave this handing around
FileManager UnitTest back on
Better output for signal failures
Set correct component ID

Need to disambiguate from video stream messages
Silence release build compiler warning
Bump signal wait time

When unit tests are being run in TeamCity the host box can end up being
very bogged down with other builds. So need to up wait time, to take
into account CPUs grinding.
Merge pull request #786 from DonLakeFlyer/FileManagerUT

File manager Unit Test back on
Fixed issue with incomplete initialization of struct.
Changed to get the current voice properties, then modify then and set new ones.
Fixed issue with incomplete initialization of struct.
Changed to get the current voice properties, then modify then and set new ones.
Merge pull request #768 from Susurrus/del_slugs

Delete outdated and unused (all) SLUGS-autopilot-specific code