Fix some galler and step edit image issues with the switch to picasso
Add custom messages to loading fragment
Remove unused dimens
Clean out some unused code from FullImageView
Normalize color constants

All caps
Be smarter about step list item
Fix add new thumbnail update view, actually shows image
Disable fade animation in step and guide lists on images
Rework Gallery (Media Manager) and Images

Images were handled in various ways throughout the app (MediaInfo,
UploadedImageInfo, APIImage, etc.) and they all basically used the same
information.  This was causing a lot of headache maintaining these.  These
changes consolidate these image objects down to a base Image class.

From that, every other Image object extends and adds fields/methods depending
on the use.

Also cleaned up gallery and organize images from newest to oldest.
Bump version # for beta release