Adds auto-complete for sms-deploy

Implements this [fogbugz case](http://manage.dimagi.com/default.asp?55903). Adds auto-complete(groups, users, send-to-all) for 'Send to Phone via SMS' input in App-Deploy dialog. 

Note on testing: Auto-fill feature is functional, deploying makes a successful POST request to send_sms handler, but I could not actually test the SMS going through, as I don't have the SMS-CONFIG credentials.