Bug 794937 - Make updates work from the Metro front end, add handling for 1 instance handling updates. r=rstrong
Bug 794937 - Updater callback should launch Metro Firefox when updating from Metro Firefox. r=rstrong
Bug 835151 - Add updates to the Metro flyout. r=rstrong
Bug 861322 - Make Metro read Desktop app.update.mode setting. r=jimm
Merge inbound to m-c.
Merge m-c to inbound.