mutt: use default mailcap
mailcap: use pandoc copiousoutput of html
mutt: OK, ask on quit
mutt: cleaner status bar
sig: now with more vantiy
mutt: show oldest messages first

this is how all email should work - encourage you to clear out the older
messages
mutt: improved color highlighting for pager

to: headers are highlighted
url regexp now includes the + character
mutt / notmuch: more virtual mailboxes
mutt: sidebar changeup

1. always visible
2. use control-jkl to navigate
process_email: exclude inbox, tags get @ prefix