3.0.0pre2 progress

Fixed importing again, made a whoopsies on the regex.
Capitalization pls.
If book doesn't have meta, we don't want anything to do with it. Burn
it. May re-add ability to unsign meta-less books, but really, why
bother. It's spawned anyway, may as well spawn a book and quill.
Known issues:
/book list author <author> doesn't work, but /book list does.
/book u <url> still can't handle pastebin-style sites. Also, did not
make it async yet. Sleep is worth more than security, shut up.