Fix dangling comma in ajax
Add option to disable autoloading first page assets
Merge pull request #142 from box/switch-autoloading-page-1

Add option to toggle autoloading first page assets
Moved all consants into constants.js; moved all paged-based layout logic into layout-paged.js
Moved DOM/page-based logic from viewer-base into controller-paged
Add text.css
Add text layout and support for viewing text-based files in viewer.js
Fix some issues with text styles