#644 - updates missing/changed fields

Gets #644 started - updates missing/changed fields from the API:

- changes `street` to a concatenated `street_1` and `street_2`
separated by a space.
- changes `zip` to `postal_code`.
- removes `faxes`
- adds icon helper for phone type with specific icons for tty and fax.
- removes `phone`, `fax`, and `extension` from contacts and adds
`department`
- adds `alternate_name` in parentheses next to location name.
String interpolation is unnecessary here. Once the helper method is renamed, this should be `street_address_for(location.address)`.