Additional test patch - Bug 843497 - Update check says 'up to date' for out of date versions on unsupported OS versions. r=bbondy
Bug 885608 - Call ScheduleReflowSVGNonDisplayText on character data mutations in a non-display <text>. r=longsonr

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extra : rebase_source : c6332ac1146dc71812c802a1160ee79ad266467e
Reftest comment fixups.  No bug.

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extra : rebase_source : b8dd7e8bde6bb5f394a3b4d1c431a2188d3abcef