Adds sql script which updates Users table to include email verification column
Adds a function for sending emails to verify registration
Adds a check after verification link has been cliked
Updates Registration controller and changes minor things.
Adds comments for email verification functions
Adds Security controller to check if email has been verified during authentication
Adds email verification steps for restaurant registration
Updates a link in config.json
Updates sample-config and moves functions from Registration controller to util
Changes Session::set to be performed by Patat's Security controller.
Merge pull request #45 from SEP007/emailVerification

Email verification