Allow to see rooms of incompatible versions in the lobby
For the new clients the room version is shown in a separate column.
There is also a hack for previous versions clients: the room vesion
specifier is prepended to the room names for rooms of incompatible versions,
and the server shows 'incompatible version' error if the client tries to join them.
AAABrnicJcsxS0JRGMbx55xzzz2ecymJllwCCYeGPoDjJaVR1K0tihoEa2nR1dD6BBdBCDIIahACxwzqonIXDRochIIGh4Yg2ju+d/nx8Od9kymsI/GtctAb/AbuoTyHGcod6KTzBfdU3MJtsgPIFqt1ZMu5QOKEYDVqUEVR76iiSsO7J0SdGvRcNjp6jheoZ0I2qEEGrB3JwLmEHhOsTQ2qh0Gkem4BekpgQA1eX1Qir69SUD4hKtSgN9l+pFedz4lb5d3Qcgf5GNPFssGMnFJoRqIJ80o4JWrwyjwIvbLYhVcgeEANesbsxwOzJ3sqFVp+aMF7khhbEljJxYAa1MJNvstrnhlatiHKMRksG9wrdvymFmJrqv94NjRHPIvEr/Inas2ZTUya+2PzwX0YyfORxa5uTJ4azBnXka7K3+k/hAxnGg==