Changes

Summary

1. fix air checks in oil generation (commit: bf9bfc5) (details)

Commit bf9bfc5c50442306e3034f1890ceee7408e2566a by asiekierka fix air checks in oil generation (commit: bf9bfc5)
	common/buildcraft/core/utils/BlockUtil.java (diff)
	common/buildcraft/BuildCraftEnergy.java (diff)
	common/buildcraft/energy/worldgen/OilPopulate.java (diff)