Merge pull request #22 from matthieuHanne/android

Android
Merge pull request #23 from matthieuHanne/android

fix error on GameMaster behaviour
adding message and method for retrieving full player list
resolved Exception and now adding new feature
Merge pull request #24 from matthieuHanne/RefactoringBehaviours

Refactoring behaviours
Add UpdateLocalEnvironnementBehaviour