Header block name should be bold.
User comment block changes:

 * Moved timestamp to below username
 * Site title/url is displayed next to timestamp if it is available. Also tappable and loads Url in a web view
Layout tweaks to get margins matching up.
Added url to `CommentTableViewCell`
First attempt at removing gap between header and content.
Fixed storyboard/nib framing warnings.
NotificationDetails: Updates Header Separator
Updates NotificationDetails separatorColor
Fixes separator inset on iOS 8.

Props @jleandroperez for the fix!
Update test logic to reflect new REST API featured image format.
Remove search for attachments for featured image test.

The featuredImageFromPostDictionary no longer searches on attachments it goes directly to the content of the post.
Make defaultAccount a variable to make it easier to debug.

It looks there is race condition between this test and the simulator starting the app or the saving of the context.
When pausing for debug the test they succeed if they run without pause they fail.
Remove GPS info from photos when geotagging is off.
Removed duplicated comment.
Fixed a broken constraint.

Changed top edge constraint for the `Dynamic Height TextView`
Refactor instance property for stripping for method parameter.
Use system constant for GPS metadata key
Use system constants for TIFF metadata key.
Remove unused class
Add documentation of new stripGeoLocation parameter.