Safety config starting point

Starting point for real implementation

Make sure trims are within min/max

Remove deleted headers

Support for remaining DO_JUMP repetitions

Add a Gitter chat badge to README.md

Initial implementation of QML Palette support

Generic AutopilotPlugin full implementation

Delete unused files

No longer needed with move to summary page qml

Vehicle Summary is now QML

Summary page is also the launching spot for the setup screens. No more
left hand set of buttons.

This prevents mavlink signals from being emitted after link is
disconnected

When using DeleteOnClose with a QQuickWidget, the shutdown sequence
causes the MainWindow destructor loop back onto itself.

- properties now hand off of main “autopilot” object in qml
- Added support for summary items through qml

UASWaypointManager: don't clear systemid and compid of last partner so that we can still get DO_JUMP updates

UASWaypointManager: accept single waypoint messages in order to update the remaining DO_JUMP repetitions

simplify instructions to clone the repository

Switch parameter facts to QVariantMap

This way you don’t need to know parameter set ahead of time.

Ptr fix - fixes #1117

Combined pulls #1113 and #1115

Plus a large number of other changes to allow for orderly shutdown of
objects without crashes or asserts. This is need for unit tests to
create/delete global state around every test.

New Singleton Manager