QuadRanger airframe

Remove dead code

include qt plugins in linux package

Restore settings

* MavLink/master:
  Add GCS Failsafe option
  Remove mission editor help panel

Add GCS Failsafe option

Remove mission editor help panel

* MavLink/master:
  "Fix" for hanging on exit when Video Streaming build is enabled.
  Updating GPS lock type text.
  Adding uint16_t to the list of supported types.

"Fix" for hanging on exit when Video Streaming build is enabled.

Adding uint16_t to the list of supported types.

Updating GPS lock type text.

* MavLink/master:
  android remote duplicate screen support
  Double-check link status after signal comes through
  Warning on running out of mavlink channels
  Mini-protocols must only communicate over single link
  Add priorityLink and sendMessageOnLink
  Keep track of USB direct connection links
  Remove change which is in another pull
  Mini-protocols must only communicate over single link
  Add priorityLink and sendMessageOnLink
  Keep track of USB direct connection links

This reverts commit 02f69bea.

Mini-protocol must only send on one link, in some case entire transaction must stay on same link

 - fixes #2542

Mission changes

Previous order was signalling new mission items available prior to in
progress going false. This was causing MissionController to pull an
empty mission list.

Prevent loss of mission due to load or close app

Fix RadioFlash