- Manage package name with the .genmodel for interactiveSystem
- Set 0 for lower bound of 'clazz' attributes in Malai.ecore
  
  Change attributes bound in classes Event, Interaction and Action in 
  order to ease construction of models.
- Update the XText parser for the new interactiveSystem.ecore
- Manage package name with the .genmodel for IAFlowGraph
- Change the project name org.malai.warpper to org.malai.wrapper
- Use new packages names for tests generation