Using bower for JS packages

Hello,

If you didn't see this recent comment
https://github.com/dimagi/commcare-hq/pull/8364#issuecomment-145154053 we
are transitioning to bower for package management. Instructions for how to
get this working on a dev environment can be found there, as well as in the
readme
https://github.com/dimagi/commcare-hq/blob/master/README.md#installing-bower
.

cheers,
Cory