Switched to maven for Waila API.
Added a null check in ItemCost comparison method to avoid potential NPEs for weird recipes.
Merge branch 'master' of github.com:MightyPirates/OpenComputers into MC1.7

Conflicts:
	src/main/scala/li/cil/oc/util/ItemCosts.scala
Updated Mac natives.
Merge branch 'master' of github.com:MightyPirates/OpenComputers into MC1.7
Merge branch 'MC1.7' of github.com:MightyPirates/OpenComputers into MC1.7.10

Conflicts:
	build.properties
	gradle/forge.gradle