Fix bug #406 and validation.
Add ecore model validation
Update the uml element validation
Fix of the bug : A progress bar for “Export Profile” tool #406
Fix of bugx: #402 #411 #412 #413

Stereotype and extension creation tool #402

Cannot edit the element's name #413

Delete Package and Profile #412

Stereotype on a package #411
Fix of bug: #403
Association and Extra Association palette tool #403