Made power support more stable (checking if methods are implemented before injecting the interfaces, to prevent crashes if APIs change, e.g.)
Merge branch 'master' of github.com:MightyPirates/OpenComputers into master-MC1.7.10

Conflicts:
	src/main/scala/li/cil/oc/util/mods/Mods.scala
Added support for Galacticraft power.