Remove emoji image check.

Emoji needs to be handled via text replacement and not images.
Remove unnecessary size adjustment.

Retriving from the cache will take care of adjust the size (if needed).
Setting the height to 0 here will prevent `resizeImage:toSize` from succeeding.
Add support for using the Photon `fit` method.

Recycls existing photon URL with updated parameters.
Adds support for batching downloads.
Don't change counter or queue in success block.
Adds rich text image control.

A replacment for ReaderMediaView and friends.
Adds a video thumbnail service and rich text video control.

Replacements for ReaderVideoView.
Switches rich text to new image wrangling.

Show images at natural size or smaller.
Use WPRichText controls and not reader media views.
Updates delegates to reference new controls.
Updated the editor pod to 0.1.6
Fix bug where session_count wouldn't be incremented on app resume.
Added a "Signed In" event to tracking.
adjusting the dot size to prevent cut off
EditPostViewController now using WPFontManager
Now using WPFontManager across the app
Removed all open sans fonts from WPiOS project.
adds username and email address to Helpshift if logged in
adds metadata for blogs to Helpshift
adds meta data to HS on login problems
Merge pull request #2072 from wordpress-mobile/issue/font-fixes

Updated how fonts are instantiated (now using Shared pod)
Added code to email if it's not currently been stored.