Bug 961655 - Ensure that webapps-registry-ready event is fired, even if the Webapps registry is initialized before shell.html is loaded. r=fabrice
bug 962229 - suppress spurious error messages about webapps.json not found on Fennec firstrun; r=fabrice

--HG--
extra : amend_source : 5ddf753e11f7d3a7d120d1db5f0700db810a2a8a
Bug 916564 - Move countFinalSourceNotes to a better place (r=jorendorff)

--HG--
extra : rebase_source : c0b10f87f1e10499586fed2e4fa570edfcaaf510
Bug 916564 - Expand source notes to hold 31-bit offsets (r=jorendorff)

--HG--
extra : rebase_source : bf350f233c514d6a97273d2ee23ce68476ae3b79