Make the contacts db always get email and phone number and make it ignore the username/spa requirement aspect
Added standard `npm start` alias for `make runserver`

It is standard practice for node apps to include `npm start`, this adds it to talkilla by running `make runserver`
Merge pull request #392 from balupton/patch-1

Added standard `npm start` alias for `make runserver`
Address review comments and tidy up
Merge pull request #387 from Standard8/contacts_db_simplify

Simplify the Contacts import and DB - always load email and phone number regardless of SPA
Add gravatars to the sidebar and the conversation list
Update tests for avatars
Merge pull request #393 from Standard8/avatars

Add gravatars to the sidebar and the conversation list