remove warnings
fix #45: added a button change to navigate view if guidance active
[BUGFIX] fix NullPointerException
fix #60: Show name of destination at GuidanceActivity
add launcher icon
fix #11: added new application and launcher icon
[refactoring] replace ThreeButtonBar with ThreeButtonPanelBar
[refactor] some smaller changes
[refactoring] WigDetailsActivity switch to ThreeButtonPanelBar concept
[refactoring] remove warnings
[refactor] remove unused methods
fix #64: Have to press HK_BACK twice to exit application
fix #58, #62, #65: press HK_BACK to stop navigation an leave
GuidanceActivity (guidance is stopped) - only in STOP_GUIDANCE_AT_EXIT
mode