Cleaning up old .ipk's in new interface

There used to be a way to add and delete .ipk files in the old user interface if I remember. 

In the new interface I can't find any way to upload or otherwise manage .ipk add-ins. Are .ipk's a thing of the past?

That being said, if I do a "find / -name "*ipk" on my nodes I don't see any files, so maybe they are all gone anyway.

Unrelated, but the new mesh stats page (.../a/mesh) oesn't seem to auto-refresh. Is is supposed to?