Use MRI ruby for non graphical players.
Fix Message behavior.

- Add some new tests.
Add some protection on message parsing.
Encapsulate communication in ServerInterface.
Add trash and uid support. Complete name with spaces.
Add missing ServerInterface class.
Implement UID and packet loss count.
Rename connection to client.
Fix params handling.
Transfer login responsability to Client.
Introduce RandomBot! for initial tests.

- It only walks to any direction and plant bombs
- Restructure bbc_test and bb_bot.
Add new actions.
Move thread to each bot.
Improve bb_bot.

Now it is possible to initialize many bots at once.
Rename action.
Add some verifications.
Merge branch 'refactor/client'