Phase 3 - Auth service extracted from monolith

Introduced dependency to cake-catalog-auth

• removed portal_user table
• integrated with logging and NewRelic

Phase 1 - Monolithic feature complete

Cake-catalog monolith

• can register user
• can login as user
• can create and list own cakes
• can set cake as a public one. Everybody can see a public cake, but only owner can edit it.
• all links are accessible only when you have a logged user

With each merged PR to master, if travis checks pass a heroku deployment is triggered:

https://cake-catalog-monolith.herokuapp.com/ - latest version of the cake catalog.