Adding support for Circle MissionItem (LoiterTurns)
Android: Fix possible array bounds errors
Adding support for multiCircle missionItem
Android: Adding new icons for Circle Mode
Android: Fixing comment detail
Merge branch 'master' of https://github.com/DroidPlanner/droidplanner.git into circleMissionItemAdv

Conflicts:
	Core/src/org/droidplanner/core/helpers/geoTools/GeoTools.java
Merge pull request #790 from arthurbenemann/circleMissionItemAdv

Circle mission item support
Version: Releasing version 2.4.0
Merge branch 'master' of https://github.com/DroidPlanner/droidplanner into feature_flight_screen_update