Refactoring
Transient + Proxy Resolve for automatically created opposite relations

More info at: http://www.eclipse.org/forums/index.php/m/734806/
Regenerate GenModel / Ecore.
Regenerate metamodel plugin
Adds validation to the Editor
Moving files generated by xtend to the proper location
Refactoring and comments
OCL Invariants
Regenerate metamodel plugins
Simplified Generalization
Regenerate textual editor plugins
Fixes maven configuration to place remove xtend-gen files in the right place
Missing files due bad maven configuration
fixing build path