Moved the code that converts a gallery span to the gallery shortcode when saving an uploaded post.

The code had no effect because it was applying to `postContentEditable` after it had already been applied to the `content` string.

Note: Galleries still saved fine for local drafts because that is handled in the WPHtml.toHtml() method.

Fixes #1437
Merge pull request #1438 from wordpress-mobile/issue/1437-gallery-uploaded-post

Fix #1437: Gallery shortcodes not saving when editing uploaded post
First pass at reblog redesign (incomplete)
Second pass at reblog redesign (incomplete)
Third pass at reblog redesign (works, but progress during reblog needs refinement)
Refined progress while reblog is in progress
Spinner indent now matches post excerpt
Removed spinner in favor of dropdown ActionBar
Wrapped reblog content in a ScrollView so it will scroll up when soft keyboard appears
Reblog excerpt now uses same font sizes as post list excerpt
Added animation to reblog editor when it first appears
Changed reblog animation
Added fade out when submitting reblog
Tweaked reblog animation (again)
Decreased height of featured image in reblog activity
Added view holder to ReaderReblogAdapter
Fixed bug that cause "Settings" link not to work (when no visible blogs to reblog to), simplified initial animation
First pass at changes to support ?meta=site,feed on /read/following/mine endpoint
* Remove ReaderFollowedBlog and ReaderFollowedBlogList
* Added feedId to reader blog model and feed_id column to reader blog table
* ReaderSubsActivity now shows feeds as well as blogs
2nd pass at changes to support ?meta=site,feed on /read/following/mine endpoint
3rd pass at changes to support ?meta=site,feed on /read/following/mine endpoint