Started testing server. AH-281
Merge remote-tracking branch 'origin/master' into AH-281_Lobby
Merge remote-tracking branch 'origin/master' into AH-281_Lobby
Reset players position when out of bounds. AH-320
Make server send a new spawn position when grabbing a checkpoint. AH-320
Make the checkpoints stop hiding when getting closer. AH-320
Fix broken integration test of Graphics.
Merge remote-tracking branch 'origin/master' into AH-259_2d_rendering
Code cleaning. Began changes of test model factory.