Magic patch from bug 933336
Bug 936312: Adjust tests' assumptions about B2G's WebGL support.
Bug 945498: Use breakpad to handle SIGSYS like other kinds of crash.
Revert breakpad change from previous
Do more stuff to crash reporting
Bug 945504: Include JS stack in sandbox reporter logs.
Bug 942290: Merge ARM exidx info with DWARF if both are present.
Bug 964427: Whitelist msync (asm.js cache) and sched_get_priority_m{in,ax} (webrtc).