Changes

Summary

1. allow robots to break blocks with hardness 0, fix #2198 (commit: efaeb90) (details)

Commit efaeb9018d2d24b5540420dcf2f9a7230823751a by hea3venmc allow robots to break blocks with hardness 0, fix #2198 (commit: efaeb90)
	common/buildcraft/core/robots/AIRobotBreak.java (diff)