Initial 1.7.2 Update.

Only updated buildscripts, haven't touched code.
1.7.2 Update.

Pretty much commented out all mod compatabilty.
Renamed BuildcraftCore to BCCore
Merge remote-tracking branch 'origin/1.7.2'

Conflicts:
	build.gradle
	src/main/java/forestry/api/storage/BackpackEvent.java
	src/main/java/forestry/api/storage/BackpackResupplyEvent.java
	src/main/java/forestry/api/storage/BackpackStowEvent.java
	src/main/java/forestry/api/storage/IBackpackInterface.java