Oxygen Sealer - deal with partial blocks and microblocks (also fixes issue #341)
Oxygen Sealer - stop multithreading to fix #343
Update ICBM API.
Oxygen Sealer - leaves, gravel and wool are porous; also fix #339
Merge branch '1.6' of https://github.com/micdoodle8/Galacticraft into 1.6
Oxygen Pipe - Performance increase and fix #338
Oxygen Sealer - now wont load unloaded chunks when checking seal (fixes #343)
Gravity Bow - keep all Bow enchants and name (fix #345 - thanks EzerArch)
Fix a severe issue where items could be duped - thanks VoSkorbia!
Merged recent 1.6 branch changes into master