Bug 903452 - Update pdf.js to version 0.8.423. r=bdahl
Bug 897258 - Avoid wasted work in GestureEventListener::HandleInputEvent(). r=kentuckyfriedtakahe
Bug 902389 - Normalize topobjdir; r=mshal
bug 886526 - remove IS_COMPONENT and MODULE_NAME makefile vars for things in libxul r=bsmedberg r=glandium
bug 659722 - remove _IMPL_NS_LAYOUT r=bz
bug 902316 - add an external tier that builds a number of external projects in parallel r=glandium
Backed out changeset fd936ec22d08 for mar bustage on osx on a CLOSED TREE
Bug 903513: Don't treat GCC "-Wmaybe-uninitialized" warnings as errors. r=gps
Bug 900714 - Remove legacy -fno-strict-aliasing compiler flag adjustment; r=mshal