* unfuck quoted-printable crap
* more robust plaintext extraction from mime
* more efficient month sort in the year view
  * I think sort(1) might have a bug with -M and pos1
  * or stupid awk can just produce an ordered list
* a lot of speedup
  * this might mean an external index
  * or it might just mean aggressive in-app cache
* do we want threading in the month views
* decode non-ascii header values (From: especially)