Merge pull request #1 from julianespinel/hotfix-user-business-test

Fix the user business tests.
Merge pull request #4 from julianespinel/feature-users-authorization

Feature users authorization
Changed response HTTP status codes when the user is not authorized (403) and when there is an error at persistence layer (503)
Changed constants to routesConstants
When a new token is generated, any other tokens of the same "type" are removed.
Removed cookies from server. Now the client maintains the app state. Auth is made now with tokens.
Public routes (login) deleted. All public routes must be managed in the client.
Fixed repository tests for userToken
Merge remote-tracking branch 'jhon-origin/develop'