Create independent view types for submissions.
Fix CardView on list items.
Update config to be compatible with build tools 21.1.1.
Completely rework MessagesFragment and the Message class.
Fix the CommentFragment to allow a single comment's thread and allow it to convert to the full Submission's details.
Make messages load "infinitely."
Fix more inbox things.
Add Toolbar to most fragments and replace container with main_container.
Fix MessagesFragment and Activity to properly restore when rotated.
Add notifications for messages.
Remove the weird multiple viewholder pattern in favor of one viewholder that simply modified the views within it.
Remove unused XML files.