Summary: Separated Makefile logic, subtree walk vs. javac compiles. Also fixed minor issue in Rules.gmk.
Reviewed-by: tbell

Summary: Update HSX12 build number to 03
Reviewed-by: kvn

Summary: Optimization in CmpPNode::sub() removed the valid compare instruction because of false positive answer from detect_dominating_control().
Reviewed-by: jrose, sgoldman

Summary: Getting rid of the _OUTPUTDIR settings. Using BUILD_PARENT_DIRECTORY instead. This solves problems with the "/build/windows-i586*" paths getting mangled on Windows builds (fastdebug builds in particular).
Reviewed-by: tbell

Summary: Stack allocated VM_EnableBiasedLocking op must be marked as such
Reviewed-by: xlu, acorn, never, dholmes