Setup initial metabox for adding various block sizes to content

Our intial options will be single, double, and triple sizes. These
are really just tied to a class name in the WSU Spine, so are
fairly arbitrary. If we do things right, these can be manipulated
easily through the use of a filter.
Add initial Javascript enqueue for content blocks admin
Add an enqueue of the initial admin stylesheet
Add initial styles for adding of content blocks
Remove support for the default editor instance in pages

We'll replace this with our own versions as various content blocks
are added below the primary meta box
Resize add content boxes for smaller screens
Add meta box to display current content

Adds dummy areas to be filled later
Instantiate a new tinyMCE editor when content block is added

This copies the initial defaults from a hidden editor that we have
WordPress create initially. We can then add incremental instances
as needed.
Add documentation to JS, start with a proper 0 count
Use a hidden input to track the expected content block count
Merge all data sections into a single content block to save

wpautop does some weird things on display, but this is definitely
a start.
Add initial filters to deal with wpautop behavior and section tags

There is some ugly processing in this that will hopefully get better
over time. Right now it's fairly effective.
Create a wsublock-current-# node when a single block is added
Add some border styling to each tinyMCE instance
Inline documentation for spineautop
Add function documentation
Display current content in the block area
Use hidden input to account for previous mce instances
If we lose a block, we shouldn't try to save it
Style existing content blocks in the editor