Editor: Adding a menu to revert the mission order
Editor: Changing the way the tools get switched on the editor.

Now by default go back to the NONE tool mode after finishing something like the path.
Editor: When entering multi-select mode add the current item to the selection.
Merge pull request #531 from arthurbenemann/missionReverse

Editor: Adding a menu to revert the mission order
Merge pull request #532 from arthurbenemann/EditorWorkFlowFix

Editor: Changing the way the tools get switched on the editor.