Adds new Notifications Stats
Updates Pods
Updates Podfile
Updates Crashlytics
Merge pull request #2270 from wordpress-mobile/issues/2265-new-notifications-stats

Issues/2265 new notifications stats
Merge remote-tracking branch 'origin/develop' into feature/notifications-redesign

Conflicts:
	WordPress/Classes/ViewRelated/Notifications/NotificationsCommentDetailViewController.m
	WordPress/Classes/ViewRelated/Notifications/NotificationsFollowDetailViewController.m
Wires Notification Stats