Merge remote-tracking branch 'Mavlink/master' into orbitOnGuidedBar

* Mavlink/master:
  Parameter search is now typedown style
  Prevent multiple clicks on dialog buttons
  Deploy OpenSSL lib
  Fix trailing slash
  Switch to exact conversion constants
  Copy files in right place
  Add missing headers
  Hack out dynamic font sizing
  Use new polygon drawing tool
  FlightMap supports generic polygon drawing tool