mc-server/MCServer — pull request #392 by SamJBarney (2013-12-02 03:42:10+00:00)
Title: Fixed 1.7 slab and stair placement.

In 1.7, they have the client returning the current equipped item. See http://wiki.vg/Protocol#Player_Block_Placement

This fix just reads in the slot, and then discards the extra data.