Bug 920728 - gdb won't start with mochitest-browser;r=ted
Bug 905973 part 1 - Add a function to read simple dependency makefiles, and make makeutil.Rule faster. r=gps
Bug 905973 part 2 - Add a tool to link several dependency files together in three different ways. r=gps
Bug 905973 part 3 - Add a "binaries" tier that optimizes for recompilation times. r=gps