Updated irc.lua; change the output of required....

args to make the fact that you need a nickname more prominent
Merge pull request #255 from JoshTheEnder/patch-1

Standardized usage message in irc.lua.
Properly handling conversion of tables with null keys or values. Closes #254.
Workaround for TMI screwing with the GuiContainer class. Should fix #251.
Removed the bucket consumption in acid/grog crafting and bucket retrieval in PCB crafting. Kind of meh because the grog now is in a magical container that disappears instead of the bucket, logically speaking, but it avoids issues - in particular this closes #194.
Merge branch 'master' of github.com:MightyPirates/OpenComputers into MC1.7

Conflicts:
	src/main/scala/li/cil/oc/CraftingHandler.scala
	src/main/scala/li/cil/oc/client/gui/Case.scala
	src/main/scala/li/cil/oc/client/gui/Rack.scala
	src/main/scala/li/cil/oc/client/gui/Robot.scala