Fix animationEnd event.

+Add Crafty 0.5.4 but don't use it currently
Merge branch 'master' of github.com:Heigvd/Wegas

# By Francois-Xavier Aeberhard
# Via Francois-Xavier Aeberhard
* 'master' of github.com:Heigvd/Wegas:
  Prog game  - Fix issue in objectives
  Prog game - Added watched expression