Adds support for 'Big Badge' notification detail views.

Uses auto layout
Merge branch 'issue/1054-improving-comment-like-notification-ui' into issue/1508-notifications-badge-detail-view

Conflicts:
	WordPress/Classes/Note.h
Fixing up templateType method placement and declaration.
Removed text centering, as it provided wonky results. Added larger note label width for iPad.
Code formatting cleanup.
Merge branch 'develop' into issue/1508-notifications-badge-detail-view

Conflicts:
	WordPress/Classes/Note.h
	WordPress/Classes/Note.m
Reorganizing a few things.
Capture 'meta' objects from the notifications api.
Added some meta value getters to the Note model.
Merge branch 'develop' into issue/1508-notifications-badge-detail-view

Conflicts:
	WordPress/Classes/Note.m
	WordPress/Classes/NotificationsViewController.m
A bit more code cleanup.
Removed authorship info from NotifiactionsBigBadgeViewController.
Merge branch 'develop' into issue/1508-notifications-badge-detail-view

Conflicts:
	WordPress/Classes/Note.h
	WordPress/Classes/Note.m
	WordPress/Classes/NotificationsFollowDetailViewController.m
Removed unused properties.
Removed methods for unused meta properties.
Removed unused import.
Removed request for meta in REST API notifications call, this will be added in https://github.com/wordpress-mobile/WordPress-iOS/pull/1523
Use NS_ENUM instead of enum.
Use object literals in a few places. Looks oh so nice.

Embraced braces.
Renamed weak variable and fixed frame property access.