Adding a target field to effect. Three options available: all, this, each entity. See Effect's javadoc for more details
Effects System updated to make use of target field
Minor changes to accommodate new variablesSystem API. Allows quick review
Test updated for effects with target
Minor formatting stuff
Added BaseTween.
Generated engine schema clases.
Added BaseTweenCreator and TimeLineCreator.
Adjusted engine core tween-related clases to use the new system.
Added Timeline example to the CoolDemo "Welcome" label.
Auto generated engine schema javadocs.
Minor timeline creator bugfix.
Bugfix and Undo/Redo
Merge pull request #429 from anserran/master

Bugfix and Undo/Redo
Removed creators parameter from BaseTweenCreator#create method.
Improved Welcome label interpolation in CoolDemo.
Improved TimelineCreator for iteration.
Merge pull request #428 from RotaruDan/tweenTracks

Tween timelines.
Added selection array to the model.
Merge pull request #431 from RotaruDan/selectionList

Added selection array to the model.