Added save point to commands (to check if there is pending changes to be saved)
Added UITest showing basic widgets
Mockup now loads it's own skin initially.
Removed unused check during shapeRenderer pass.
Fixed small Widget positioning bug.
Avoided duplicated code improving ApplicationAssets constructor.
Merge pull request #299 from RotaruDan/mockupFixes

Some Mockup adjustments after the recent prs.
Fixed bug in mode painted of the scene edition
Merge pull request #302 from RotaruDan/PaintView2

Fixed bug in scene edition
Added dependency Ashley Entity-Component framework
Merge pull request #303 from anserran/ashley

Added dependency Ashley Entity-Component framework
Adding a method in EditorIO that saves the given model to a temp folder previous upcast to the engine's schema
Updating SaveGameTest
Formatting
Adding a pointer to the path where to retrieve the engine.jar lib for exporting games
Fixing engine-desktop's pom.xml so it creates an engine.jar file with all dependencies with each mvn clean install -pl :engine-desktop
Formatting
Letting EngineDesktop have its own icons. Improves user experience in jar games.
Adding a base class for launching games in jar format
3 minor unrelated changes to Controller: outdated fixme removed, two missing links in javadoc edited out