Generation Recognition, rarity check for an error.
Merge branch 'master' of https://github.com/MrMasochism/Pixelmon

Conflicts:
	minecraft/pixelmon/spawning/SpawnRegistry.java
Some model updates.
Haunter lowered down.
Legendary birds models lowered to ground a bit more.
Merge pull request #1279 from Xwaffle1/master

Generation Recognition, rarity check for an error.