Bug 881988 - Support calling natives in parallel. (r=djvj)
Bug 881593 - Part 1: Change LossyTwoByteCharsToNewLatin1CharsZ to take ThreadSafeContext. (r=billm)
Bug 881593 - Part 2: Add ParallelSpew intrinsic. (r=nmatsakis)
Bug 889346 - Check for NULL TypeObject when inlining ParallelArray constructors. (r=nmatsakis)
Bug 885017 - Fix length handling in ParallelArray.scatter. (r=pnkfelix)
Bug 891946 - Rename ThreadSafeContext variables from tcx -> cx. (r=bhackett)
Backout 129da44ac469 (bug 870180) for breaking message manager