Review User Signup branch

[0bserver07]

Hey @Smerity, check out the new version with the following updates here in this branch

• Let users add people to follow dynamically from profile section #5

• 2 sub issues:

currently:

1. User will be shown a Demo on homepage without signup.
2. Users can signup with their own: i. email/password ii. twitter api_keys iii. change all above on page /profile
3. Users can dynamically add who to follow on page /authors.

With adding twitter keys by each user, the limit is increased. (it's essentially their own search tool now)

Next: Now this can run as a web app, while other users can add Custom Followers list to user's profile. but but ...(this is part is work in progress, currently there is not a relation between 1 User and his/her following authors)

Let me know what do you think, and later I will:

1. delete the config yaml content.
2. make the User to Author [one to many] relation