Added file resolver test and javadoc to path conventions
More info https://github.com/e-ucm/ead/wiki/File-paths
Change EXIT_ON_CLOSE for HIDE_ON_CLOSE
Some times, Swing thread shutted down the application without letting
libgdx to release all its resources. Gdx.app.exit() shut downs the application
either way.
Moved spinner to engine
Added docs and test to BindLoader
More info: https://github.com/e-ucm/ead/wiki/Binds
Scenes are loaded using IO, not using Assets
Merge branch 'option-widgets' of github.com:e-ucm/ead into option-widgets