Fixed issue where logging in with a wordpress.com site that wasn't primary resulted in another site being selected.
Allow 'tap to dismiss' from any page on the second nux walkthrough.
Fixed issue where WordPressXMLRPCApi was incorrectly flagging a DudaMobile site.
Replaced PLCrashReporter with Crashlytics

props @sendhil
Removed some logging messages

Those were useful while developing, but right now they're just noise
Avoid initialising a navigation controller with a nil root
Merge branch 'crashlytics' into release/3.6.1