first pass at pulling in class/course/student type models from class diagram
some association cleanup
a bunch of factories and some specs
bunch of specs, responses to PR comments, factory fixes
more PR #3 fixes from comments, rake task to initialize secrets.yml file
removed now duplicated secrets.yml copying line in travis setup
Merge pull request #3 from openstax/class-diagram-transfer

(WIP) Class diagram transfer
FrontEnd integration (need specs)
Better javascript in template
Webview specs WIP
Updated gems
Webview specs now pass
Added spec for webview's template