Fix empty smeltery trying to drain
Update Sounds for 1.6.4

The old method would still have worked
Slight changes to glass pane top/bottom textures
Fix Smeltery eating invalid items, only attack mobs if fluid is inside Smeltery
Merge branch 'master' of https://github.com/mDiyo/TinkersConstruct
Really make smeltery only attack entities if it contains fluid
Comments!
Items always omnomnom
Update Smeltery Blood to new fluid system
Merge branch 'master' of github.com:mDiyo/TinkersConstruct