Add filenames to catted js
Add filenames to catted js

We're going to minimize these pretty soon anyway, but in development
this will still be helpful prolly.

mccolgst/www.gittip.com,studio666/gratipay.com,studio666/gratipay.com,gratipay/gratipay.com,studio666/gratipay.com,eXcomm/gratipay.com,studio666/gratipay.com,mccolgst/www.gittip.com,eXcomm/gratipay.com,gratipay/gratipay.com,mccolgst/www.gittip.com,eXcomm/gratipay.com,gratipay/gratipay.com,eXcomm/gratipay.com,gratipay/gratipay.com,mccolgst/www.gittip.com