First implementation of the UIManager
Merge branch 'master' into interface_dev
Menu now closes properly
First test on state machine (not working)
A few opens for doc to work
Removed dummy_map
Now working state machine and game (though ugly)
Merge branch 'interface_dev' into state_machine
Cleaned main
Merge branch 'master' into state_machine
First iteration of a MainMenu
Updated to match new MainMenu
New tiles
Few fixes to Render
Fun with interpolators 2
Texture are now loaded only once
Merge pull request #49 from GL-MPRI-2014/state_machine

State machine
Added a few ugly units
Zoom is now limited

Fixes (I hope) #51.
Added '0' to reset the zoom