Post title not being saved

Fixed an issue where posts added to a thread did not have its title
saved. The underlying post object in the posts controller was rewritten
to be a single object rather than a collection of objects.
Initial commit for view for managing categories/boards

* Work in progress
* Currently displaying all boards in categories, recurisively with their
childboards (no matter how nested)
* TODO:
  * Add ability to move individual boards up/down
  * Add ability to multi select boards and move to a cat
  * Add ability to insert/modify boards
Optimizing recursion for childboards
Updated view to use plugin from slickage fork of Nestable

* Implemented organizeable boards within categories
* TODO: Serialize array of boards/cats
* TODO: Insert board/category
Rebased Category changes on top of Master.

* Implemented Serialize upon submit
* Implemented Reset
* Implemented Expand All / Collapse all
Updated view layout to include uncategorized boards

* New Boards/Categories can be added
* Can drag from uncategorized boards to categorized boards
Reorganized css and deleted unused css