Edit media overlay improvements

- Rotation support for phone
Fixes crash when tapping Add on media

- Due to introduction of spaced right bar button item
Fixes crash when cancelling custom resize

- Repro: Take photo, custom resize, cancel. Repeat. On the second cancel there was a crash.
Prevent reuse issues on media cell when uploading
Prevent crash when reloading media from a delete on edit media
Fixes crash on rotate showing permission error alert

- iOS6 only
Fixes crash on choosing recorded video
Enable panning on the editing fields in media edit

- Font updates for labels
iPad title portion of media browser cut off
Editing slides up/left on editing media

- Slides up from bottom on phone, portrait iPad. Landscape iPad it
  slides left from the right
Fixes crash on adding from library in iOS 7 iPad

- Again with the rightBarButtonItem[s]
Fix various issues with editing

On iOS 6, viewDidLayoutSubviews is called for every keyboard action; it's not called in iOS7. This was readjusting the scrollview height incorrectly. Fix is to record the current keyboard height
Emphasis date picker buttons on media library
Show attached media with ability to add from lib

- When entering a post's media, the user views currently added media. Pressing the + button opens the whole library, with available actions as usual.

- Deleting media from the post removes it from the post, not the library.
Double tap to zoom, and pan on large media photo
Append HTML when adding media through library

- TODO: allow user to choose
Fix loading indicator for loading images
Play movies in media edit screen

- Autoplay disabled

- This will benefit from load state indications to the user later
Don't attempt to load full video for thumbnail

- Server-side issue: instead of thumbnails, the full video is given for remoteURL (which makes sense)

- There should be a thumbnailURL for videos. It makes sense that this was not considered before, as before now media was not pulled in from the remote library.
Don't show dimensions if none exist for media item