Modified TrackLayout and StretchableButton to allow their use with ScrollPane
Added new method in FixedButton and new type of button
Added UI for add buttons (that represent tweens) in TrackLayout
Static method in Q
Created indexes package, with some new methods in FuzzyIndex
Added controller index, to index arbitrary things
Renamed RootEntityCommand -> ResourceCommand
SceneNamesIndex, to index scenes by its name
EffectsIndex, to index effect classes by its name
Added javadoc and changed one i18n text
Adds GridLayout.
Adds DraggableGridLayout.
Adds DraggableGridLayoutTest.
Remove AddScene action. Use NewScene instead
Merge pull request #688 from anserran/qindexes

Added controller indexes, to index arbitrary things
Added some changes to make compatible DraggableScrollPane with StretchableButton
Merge pull request #685 from gorco/AddTweensUI

Added tweens ui
Sets dragActorPosition relative to the click.
Erases fling in DraggableScrollPane.
Format.