Bug 901706: update IPeerConnectionObserver UUID r=ekr ba=bajaj
Bug 901707: update IPeerConnection UUID r=ekr ba=bajaj
Bug 880109 - Begin a new session when environment changes. r=nalexander, a=bajaj
Bug 900694 - Part 1: Add ProfileInformationCache.removeAddon. r=nalexander, a=bajaj
Bug 900694 - Part 2: BrowserHealthRecorder changes to track add-on uninstallation. r=nalexander, a=bajaj