double image sizes
Return response for picture uploads as `text/plain` for IE9 support.
Adding quotes
Merge branch 'master' of github.com:sakaiproject/Hilary
Fixing issue caused by new version of Express / Querystring
Merge branch 'changepic' of https://github.com/bp323/Hilary into changepic
Merge pull request #453 from stuartf/embiggen-images

Make preview images optimized for tablets and other high resolution devices
Adjust oae-content activity test to handle the larger preview sizes.
Merge pull request #482 from bp323/contentActivityTestFix

Adjust oae-content activity test to handle the larger preview sizes.
Merged master.
Previews refactor: Ignore collaborative documents who aren't published yet.
Previews refactor: Added etherpadHtml to the Content Profile endpoint (/api/content/:contentId).
Previews refactor: Removed getOrCreateQueue from MQ util.