ignore empty inventory names
formatting
added api to allow setting wireless router's signal strength; fixed lua.lua's result printing not wrapping
Merge branch 'master' of https://github.com/MightyPirates/OpenComputers into MC1.7

Conflicts:
	src/main/scala/li/cil/oc/common/tileentity/WirelessRouter.scala
	src/main/scala/li/cil/oc/server/driver/CompoundBlockDriver.scala
fixed keyboard 'can stay' check