Bug 919006 -  Email fails to start properly (xhr needs responseType text)
Merge pull request #12354 from jrburke/bug919006-xhr-responsetype

Bug 919006 -  Email fails to start properly (xhr needs responseType text) r=me, due to severity of blockage due to recent gecko change (nothing in gaia to roll back), and simplicity of the fix.
WIP -- Bug 916035 - Follow up bug for writing test on bug 913377
Bug 917689 - LockScreen won't slide on B2G desktop and Firefox nightly