Changes

Summary

1. properly fix Java 7 dependency (commit: 46432d2) (details)
2. add buildcraft quarry frame cleanup, close #2005 (commit: fd6a456) (details)

Commit 46432d2579c8c979f03909942dccdf08b897f080 by asiekierka properly fix Java 7 dependency (commit: 46432d2)
	api/buildcraft/api/core/StackKey.java (diff)
Commit fd6a4564345a76ebdcaadf53ba4752c1c2492383 by asiekierka add buildcraft quarry frame cleanup, close #2005 (commit: fd6a456)
	common/buildcraft/factory/BlockFrame.java (diff)
	common/buildcraft/factory/BlockQuarry.java (diff)