Remember preferred screens, when user selects one from the menu.
Re-use it each time it's available.
Most recently selected screen will be used first, and if not present, other previously selected screens can be used.
better naming for displays with duplicate names
better naming for displays with duplicate names
Merge pull request #21 from gboudreau/screen-control

Remember preferred screens, when user selects one from the menu.
Merge branch 'screen-control' of github.com:felixhageloh/uebersicht into screen-control
Small improvements and fixes.

Using a constant instead of hard coded number for the max number of
screens.
Making sure some vars are initialized to nil and not garbage.
Merge branch 'screen-control' into refresh-button

Conflicts:
	Übersicht/UBAppDelegate.m