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.
Portrait Layout

Add port-layout for Calibration page
Portrait Layout: RC Calibration

Streamline the layout size between RC Calibration and Calibration
Portrait Layout: Tuning

Add Portrait layout for Tuning Page
Merge pull request #540 from azrin1972/Calibration-Layout-Port

Calibration layout port
Update Mission Item icons
Update styling of Editor list
update spacing for text in header
Updated panel layouts for modes
Prevent Guided mode when not connected
Guided mode listeners for Alt change
Guided mode: allow for altitude changes from side panel
Increased hit area of drawer tab
Merge pull request #541 from arthurbenemann/UI_updates

UI updates
Merge pull request #542 from arthurbenemann/GuidedMode

Changes to Guided Mode
Improved Flight Timer - now independent of the InfoMenubar.

When switching activities, the infer bar is re-instantiated and the timer was being reset. Now Drone State contains the timer.