Bug 914373 - Verify $PATH is sane during bootstrap; r=mshal
Bug 914372 - Provide more info to help with installing Python; r=mshal
Bug 901278 - More intelligently detect installed Xcode; r=mshal
Bug 910487 - Hack binary Python extensions into building on Windows; r=mshal
Bug 870420 - Require Python 2.7.3+ to build; r=ted