change playlist sorting behavior

[scottdraves]

the main playlist view has some UX issues.
i never use the "sort" buttons anymore, not sure why.
but i do often click "jump to bottom" because i want to see the end.
the window has problems loading everything when the playlist is long, since our lazy loading is defeated.
the jump buttons are not obvious, and conflict with the tray UI.
the "+" button here is confusing because it looks like the + at the top but is actually totally different.
would it be better to

1. remove the jump buttons and instead have a reverse order button.
2. remove the sort by name/date buttons. maybe there is a place for them, but i can do it by API if i need to, or they can be restored in a safer less confusing place.
3. add a search/filter text field, like the one on the feed.
4. change the lower + button to a upload icon, and move it to the top of the page or something.