Bug 950700 - Make EXIF parsing use Endian.h functions.  r=seth

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extra : rebase_source : 5962dfbfb53dd06d4a7228482a4f84f34e00cb9f
Bug 953316 - Add all the other object flags to JSObject::dump's output.  r=bhackett

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extra : rebase_source : 82e7371ceb07550f918c9012c57dab937cee7214