pass stripe key to upgrade view
update view to use stripeKey
Set contentType to 'image/svg+xml' when format is 'svg'
set format to html for .svg requests

This is because we use the format variable to access the correct panel
of the bin, which means our check for html must now also check the mime
type
Test to move from "bins" to "file"

Conflicts:
	lib/features.js
IP based A/B testing
Use percentage of visitor for feature flagging

Conflicts:
	lib/features.js
Initial support for relative assets

Note that this should be upgraded to use memcached for looking up the assetUrl as it can quickly become expensive on the database for no good reason!
Merge pull request #1475 from jsbin/feature/user-image-aliases

Initial support for relative assets
add httproot to account pages context
use http root for /sethome
add upgrade button to /account sidebar
reindent html
add pro-badge if user is pro
Add redirect to refer for dropbox auth
use req.bin.svg instead of format
Add redirect to refer for dropbox auth
Merge branch 'feature/upgrade' of git://github.com/jsbin/jsbin into feature/upgrade

* 'feature/upgrade' of git://github.com/jsbin/jsbin:
  Add redirect to refer for dropbox auth

Conflicts:
	views/account/profile.html
wrap links in p tag
 for spacing
link to external stylesheet