Merge pull request #86 from foresttoney/login

create signup.html
added sms button to dialer view
sms button and revised layout in contactInfo
added sms method to dialerFactory
sending sms to server
added sms input popup
sms popup style fixes
moved sms popup to dialer factory sms logic
removing unnecessary comments
Merge pull request #87 from aesprice/sms

Added SMS messaging interface
Merge pull request #88 from foresttoney/login

implement front end authentication using firebase
store user id and phone number to database on login