1.2 GW - Updated game version

- Changed background and animated main menu [b]Single game:[/b] - delimited the rock with solid collision - added a new cloud system in the sky - changed interfaces and info texts - added music - made numbers over enemies - added the t-rex path on mission start [b]Multiplayer:[/b] - delimited the rock with solid collision - added a new cloud system in the sky - Simplified leveling by experience - t-rex path changed