re-add the user_id to the users table, however its just an id (not primary key). so we can still store just the id in the session rather than the username. add feed_title to the feeds table - this can either be user-input or if empty, will be updated once the url has been hit (and it will use the page title/feed title from the url)
new function to return username for a particular userid
you can now add/list feed urls. feed urls will be stored once then linked to a user in a separate table. will be useful if multiple users want to hit the same site
add links to view feeds/add new feeds
add "feed" as a valid system. add a "niceDate" fn helper to take a postgres style date and make it easy to read. also tabs2spaces