Particle system and multiprofile, Closes #8

Implemented particle system for wave, fire, heal bonus. Will work on smoke too later.
Started implementation of multiprofile, so that in Versus configuration are kept and that one can switch between multiple profiles.
Can desactivate collisions in VersusGame by pressine F2.
Video and locale selection buttons now "loop".
Optimized a bit VersusGame.
Corrected an issue were linkedToBoat objects were not updated.