MineMaarten/PneumaticCraft — pull request #300 by DarkStarDS9 (2014-12-05 22:16:06+00:00)
Title: now using block.canSustainPlant

This is for issue #194. I have absolutely no idea what I am doing (first time messing around with a mod source), but it seems to be working (tested with grass-blocks from biomes o plenty).