modifying the list of issues
DEVELOPER-386

Updated rendering on home page for event dates.
Most of the content for DEVELOPER-273
Research page updates
Fixes DEVELOPER-239
Fixes DEVELOPER-286
Fixes DEVELOPER-207
Fixed slide out nav on older android devices
Added tutorial type to developer materials
superscript on reg
fixing broken clicks, fixes DEVELOPER-393
This may help the CDN issues.

I think we've gotten out of sync with builds for the css, and possibly
the javascript on the cdn, this, I think is why things are not looking
correct.
DEVELOPER-273 changes
Updated cdn.yml
DEVELOPER-362, move where we set the sprite spacing
Update Gemfile.lock
Changes after a "rake update" and "rake preview"
Updated all items in cdn.yml to fix consistency issues
Use CDN for images
Updated cdn.yml