readme
Removed some unused stuff.
Autogen.
Refactored actions to handlers, as per Eclipse Command Framework.
Integerated gef actions with eclipse command framework.

Tried to utilize the command framework as much as possible for holistic
integration of icons, key bindings and multiple contexts like popups
and toolbars.
Changed screen editor id, implementd screen property state interface
Removed programatic creation of actions. used command framework to declare commands and handlers instead.
getGraphicalViewer() method. Might be removed in the futurue.
Refactored
Minor refactoring.
Refactored many actions into handlers.
Added a few new adapters to retrieve further information.
Minor refactor.
When cloning layer, make sure to clone layer's children as well.
set the missing background flag.
Use CGScreenPreferences to store preferences.
setChildren() method
Added some new images.
Unused property tester class.
Unused property tester class.