Ensure that we are adding videos to the playlist database object when we insert them.
Updated logic to follow profiles for playlist.
Do not search for existing subs when inserting a new sub, the sub's belongs to id will be different.
Formatted linq statement to be multi-line, instead of single line, to make it easier to read.
Removed check for subscription if we are adding a new one, the profile id is going to be different.
Ensure we are deleting subs from the database when they are no longer associated with a profile.