Added a new file.

We added a new mixin to deal with users controller for the
api.
Added new content to the git ignore file.
Added new content to the user controller.

For now you can update your name and bio via the api.
Removed sessions api mixin and adde users.

We no longer deal with sessions api for logging in.
Added new tests for the users. were at 99% converage.
Removed sessions api and specs.

We no longer need to worry about logging in via the api.
We have a api token for this.