SpongePowered/SpongeAPI — pull request #327 by ST-DDT (2014-12-27 14:48:09+00:00)
Title: Added ItemStackComparators

Alternative implementation of: https://github.com/SpongePowered/SpongeAPI/pull/267

I used @Kobata 's pull request and modified it to match @ryantheleach 's and mine proposal.