- New mission command editor dialog
- New MissionCommands toolbox object to get command info
- Added APM mission item set

Also merged MissionController and MissionEditorController into single
MissionController implementation

Also remove Move Up and Move Down support

Also fixed button and panel state transition bugs

This is in preparation for full Qml main window

This is to toggle off help view when clicking on items on the map and checking the appropriate buttons accordingly.