Added resources to create dynamique user promts
Added operations for switching the server on and off
Added possibility to get the list of connected users
BiMap reintroduced
Message and HelloMessage updated
Quality Controle + bugfix
Merge pull request #9 from garciafl/helloMessage

OK. Revue qualité et qqes corrections (voire commentaire sur le HelloMessage.handle). Je ferme.
Merge pull request #8 from garciafl/TestApplication

Test application
Getter for a user list
Fix
Fix for List<User> getConnectedUsers
Merge pull request #10 from garciafl/getUsers

OK. Je ferme.
NetManager.java