Added flask-login lib to help with user auth

Added flask-login to our lib but unfortunately that required
us to switch our flask version to a more stable one.
Update base template

Update base template to highlight in the nabber
where the user is located in our web app.
Also removed extra css import and created anchor
tag class that prevents the default action.
Create views and pages for auth
Configure login manager + create User model
Fix typo on admin page on the user register
Merge pull request #2 from theMagicalKarp/auth

Authentication Integration
Merge pull request #1 from theMagicalKarp/lib-update

Added flask-login lib to help with user auth