Code simplification.

-still some trouble with AI
Now animals have proper AI and also fix mob stuck on AIEatTallGrass
Added wolf.

-still trouble with chicken
Wild variant added

-chicken breed code still to do
Fix loading order bug
Stable build v1.0.0

-Wild chicken now mate
Merge pull request #1 from SionoiS/v1.0.0Modif

Stable version 1.0