GuidePoint: Display marker with altitude
GuidePoint: Update marker on altitude change, dismiss marker on APM mode change, fix for loss of marker on orientation change
GuidePoint: added distance from operator
GuidePoint: draggable guide point, click marker to change altitude
DistanceView: textAppearanceMedium -> textAppearanceSmall
Merge branch 'master' into guided

Conflicts:
	DroidPlanner/res/layout/activity_planning.xml
Merge pull request #347 from arthurbenemann/guided

Draggable guide-point