Merge pull request #431 from RotaruDan/selectionList

Added selection array to the model.
Renamed ChangeSceneNote to ChangeNote, now also accepts the first argument as a Note.
Changed ActionForTextFieldListener to use the new ChangeNote action correctly.
Selected the element prior to start editing him.
Now the elements correctly change title and description.
Now ElementButtons correctly display the title and the description.
Simplified eAdventure Mockup UI buttons constructors.
Removed some unused imports and other minor stuff.