- Generics simplification
- Start refactoring the constraint checking mechanisms through validators
remove the homemade mock ModelView
save
- lazy labelling

Start refactor RelocatableVMModel
Lazy variable labelling
Trade some FastIffEq for BoolChanelling
More tests that seems fine for the moment
clean
merge
start externalize action insertion from ChocoModelViews
migration to java7
Code cleaning
jdk7
fix conflict
fix resource allocation dilemma when relying on re-instantiated VM.

Nasty fix but it does the job for the moment.
Validator for Ban
Validator for Running
Validator for Root
Validators for Fence and Ready
Validator for Offline