API CHANGE: Added name getter to item descriptor, in case they're obtained via api.Items.get(ItemStack) an that's of interest.
Added some warning so the assemble button tooltip, mentioning recommended parts (screen, keyboard, gpu, filesystem).
Added creative tier robots, assembled (instantly) using a creative case.
Fixed #316.
Added check for native lib validity when failing to extract because it is read-only (e.g. opened in another process).
Should fix #322.
Merge branch 'master' of github.com:MightyPirates/OpenComputers into MC1.7

Conflicts:
	src/main/scala/li/cil/oc/client/gui/RobotAssembler.scala
	src/main/scala/li/cil/oc/common/tileentity/traits/power/ThermalExpansion.scala
	src/main/scala/li/cil/oc/common/tileentity/traits/power/UniversalElectricity.scala