Can we move this to load as an asynchronous script?

https://github.com/EdgarChen/gaia/blob/cbbf2089d4390bc8b137333a5866d774b25f0804/apps/communications/contacts/js/contacts.js#L700

We won't need that file until we go to settings to we can skip forcing to download, parse and execute this in the critical path.

WDYT?