[Finishes 61158612]: Finalize prize flow and data
rename styles
Merge pull request #187 from tobyk100/master

Modify unplugged in response to feedback.
[Finishes 61158940]: enforce prizes as US only
add skype
change skype image, add rake tasks for prize import
PR feedback
Fix signout link
more info for admins
Set unicorn to auto-start on reboot
New student terms messages. To be shown on signup page
Update staging server list
Cache script levels for milestone reports.
Add tracking pixel when starting hoc
Always clean out smart quotes and m-dashes when getting text from Hadi
Update staging servers
Only show tracking pixel in production
update videos
fix query_url override
add donorschoose import rake tasks