navigator: NavigatorMode and MissionBlock API cleanup
Merge branch 'navigator_rewrite' into navigator_rewrite_drton
navigator: whitespace fix
navigator: API changes, reparing to move manual modes to navigator, WIP
Merge branch 'navigator_rewrite' into navigator_rewrite_drton
navigator: more API changes, duplicate code removed
navigator: mission mode fixed
Merge commit '857b843d445f59f2dc393e4d5f879fc56f77a0e0' into navigator_rewrite_drton
navigator: takeoff on start of mission implemented
Merge branch 'master' into navigator_rewrite_drton
navigator: takeoff altitude fixed
commander: require home position for MISSION, fallback to LOITER
Merge pull request #1119 from PX4/navigator_rewrite_drton

Navigator rewrite - DrTon