Bug 1003803 - Purge Ion ExecutableAllocator on GC. r=bhackett
Bug 1004923 part 1 - Remove "long double", some C-isms from prmjtime. r=njn
Bug 1004923 part 2 - Cleanup NowCalibrate. r=njn
Bug 1004923 part 3 - Cleanup Windows PRMJ_Now. r=njn
Bug 1004923 part 4 - Add some early returns to PRMJ_Now. r=njn
Bug 1004923 part 5 - Reduce indentation level in PRMJ_Now. r=njn