Updated following/unfollowing logic to increment/decrement following number when button is pressed
Took out setFollowButtonState as it used too many API requests, this needs to be fixed
Changed the way UserFeeds determine whether a user is following another user or not. It is now a variable belonging to the user feed class instead of the cell, so it is not needlessly refreshed all the time -- made minor change to search user table that displays the user's name as the subtitle instead of their description -- optimized following and unfollowing to use less API requests