Fix possible NPE in FacadeItemRenderer
Fix canFill/canDrain in tanks
Merge pull request #1831 from Prototik/npe-item-facade

Fix possible NPE in FacadeItemRenderer
added handling of blueprints without unique ids, close #1842
Merge pull request #1833 from Prototik/tank-drain

Fix canFill/canDrain in tanks
Merge branch '6.0.x' into 6.1.x

Conflicts:
	common/buildcraft/transport/render/FacadeItemRenderer.java
Merge branch '6.1.x' of github.com:BuildCraft/BuildCraft into 6.1.x