added connections controller and index view
added omniauth callbacks controller
completed omniauth setup
added notes model, columns to user model for token and secret
token and secret are successfully saved to user model upon sign-in
protected secret keys in .env file, generated notes controller
built out notes views and nested routes
added connection profile pictures, removed contacts with private settings
enabled user to import all linkedin contacts into their list of connections to be edited
enabled user to delete a connection after importing from linkedin
prevented duplicate records from being created when refreshing contacts from linkedin
edited application.css.scss file