MMLC-12 clean up admin structure.
Merge remote-tracking branch 'upstream/master'
MMLC-85 allow users to view math through front end ui
These should not be in production mode
Merge pull request #39 from meghanlarson/master

Better admin interface, switch back to mongodb for db, start of ui for equations
Use port 80 for prod
MMLC-96 allow option to download img tag with png data URI and alt text
MMLC-69 Support for saving information about html5 components
Merge pull request #40 from meghanlarson/master

Support for html5 and png as image tag
MMLC-69 add option to preview equations
MMLC-69 Front end check for file upload. Remove logging.
Merge pull request #41 from meghanlarson/master

Changes for html5 uploads
Increase timeout.
Merge pull request #42 from meghanlarson/master

Increase timeout.
MMLC-98 Add redis installation to bootstrap.sh
MMLC-99 Make html5 processing async
Merge pull request #43 from meghanlarson/master

Redis install for kue, Async HTML5 Processing
Bug fixes to admin config
FIx validation
Merge pull request #44 from meghanlarson/master

FIx validation and admin