1.1.2 - First upload (Was a private plugin before.)
1.1.3 - Fixes a bug that stopped you from actually getting a slab if you don't have one in hand.
2.0.0 - Major update bringing dynamic slab detection to give forward and backwards compatiblity.
2.1.0 - Private release to ORE. (Had to do a hard coded update because of Bukkit bug)
2.2.0 - Fixed dynamic slab detection and also did some improvements.
I automatically build this on push to my github using my Jenkins server. I don't recommend using my builds from there as they will be untested and also they were not reviewed by the bukkit staff. But if you would like to them they are located HERE.