Bug 942043 - Straighten up zlib linkage wrt shared js and system zlib. r=gps,r=ted
Bug 874266 - Move all DEFINES that can be moved to moz.build. r=mshal
Bug 941649 - Part 1: Fix off-main-thread alloc path in the GC. (r=bhackett)
Bug 941649 - Part 2: Add a workerThreadCount shell testing function. (r=luke)