Merge pull request #2 from StanleySathler/appbase-upgrade

Changed tab to spaces

Moved appbase credentials to a config file located at project's root directory

Remove unused files

use of bower

Add max-height to container to make sure that scroll appear.

Handle the case if user doesn't exists.

We need to close the previous stream before starting new stream.

Prevent balnk user and blank tweet in list.

Use relative time

Add the loading while logging in

Add scroll directive

Set the global size for tweet and user.

Add order by date

Refactor in html part