If phone=0 make it a null in the DB.
Empty phone should be empty string instead of Null
Add expiration value of 5m to the session.
Merge pull request #101 from tamcap/bug/92-clean-phone

[fixes #92] If phone=0 make it a null in the DB.
Merge pull request #102 from tamcap/feature/95-add-session-timeout

[fixes #95] Add expiration value of 5m to the session Merged! :+1:
Changes to APIs to fit the new models
Makes API work. Now we use our internal IDs vs. external IDs in the API.