REST services that alter data should only be available to authenticated users.
Update operations should also verify if the user requesting the change has permission on the referenced data.

You should be able to rename a lane. The edit should be activated when double-clicking on the lane.

The new name cannot be empty.

If the e-mail address doesn't match any registered user, the system must inform this to the logged user and ask if he wants to send an invitation to the new member.

Invitations should be sent through e-mail with instructions on how to register. Once an invited user registers, the system must recover all pending team-invitations and add the user to all of those teams.

Every board should have an associated team, and every team-member should have full access to the board.

The board owner should be able to add existing users to the team of their board by using an e-mail address. If the e-mail address doesn't match any registered user, the system must display an info message and cancel the team addition.

You should be able to click on a lane title and drag the lane left and right to reposition it on the board.

Option to add a new lane to a kanban board. New lane will be added as last lane.

Currently the boards are stored as dummies in boards.js file. Create a REST Service to get the boards, even if it's still retrieving the dummy boards.

User can drag and drop a card from the current lane to a new lane. Once he drops the card over a new lane, the board should be updated.

Create a REST service for saving the state of an existing board (or persisting new ones) when they change (cards moved/created/deleted, lanes changed, etc).

Users should be able to log in using their Google accounts. Boards should be associated with the user that created them, and should only be available for those.

When a user logs in for the first time, a new user should be created and registered in the datastore.

You should be able to create new Kanban boards on the system.

When creating a new board, you must provide the board name and also a name for the default lane. A board should not be created without those two names.