First commit of the editor widgets
merged with upstream
Fixed zero-width text controls, re-added color and int
FIXME: int uses text (no spinners), color is broken
Added maven task to generate editor skins
See https://github.com/e-ucm/ead/wiki/Skins
Created Assets to substitute AssetManager
Assets should handle some common tasks, as loading skins and other
default resources.
Improvements in skin
Removed some unused assets
Added debug mode for editor
See https://github.com/e-ucm/ead/wiki/eAdventure-Editor
Changed WidgetGroup for Actor in options
Added checkbox style to default skin
Editor is created with the same window size as the screen
FPS are drawn in editor debug mode
Add spinner widget
Renamed Editor to EditorEngine
Added title property to game
Created global variable for command manager
Also added new project command
Added style for select boxes
Options receives model updates
Some formatting
Merge branch 'master' of github.com:e-ucm/ead into option-widgets