Removed some pep8 violations.
inital work to use streams/chunks when handling uploaded assets
Remove duplicate URL route
support uploading and referencing assets as streams rather than having to read everything into memory first
Removed obsolete active_tab template variable
Stubbed out textbooks index page
Increased the awesomeness of the textbook filler page by a factor of 12.8
Set up Backbone models/views to construct logic of adding textbooks/chapters
Pass asset upload URL to Javascript
Always display chapter close button
Move underscore templates out into separate files
initial html and sass for textbook upload
Truncate AJAX error messages in notification
return right mimetype from upload method.
round 2 on html and sass for textbook upload
replaced main-wrapper with wrapper-content wrapper for main content to align better
added icon to add a chapter button
add a new cms ENV configuration to use a slow upload file handler to help test progress bars in uploads
Better handling for chapter upload error
add ability to do failure testing. If a post passes in a '?fail_at=<num_bytes>' then the middleware will throw an exception