put notebook commands in a span; use remove icon instead of trash
only fetch username once

make this_user a 'private member' of editor tab
name the sort order keys
private notebooks

resolves #44
pull attributes from either interests or alls; simplify update logic

if we're loading a book that's not in the interests but it's in all_books,
use the entry from there (e.g. to get visibility flag)

update_notebook_status had a lot of cruft, scraped it off
show selected notebook in tree
fix bug where interest folders were not getting recreated

can't just delete a jqTree folder node, must also delete its children