v1.40.1

1.40.1

Improved

• Read mail stays in the list, under a divider that waits at the foot of
  a long inbox with Delete all. Click the divider to fold it away;
  Postbox remembers.

Fixed

• No more stray scroll bar on a list that already fits.
• The resize hint no longer reappears while you drag.
• The "Read, nothing left" bar no longer shows mail through it or leaves a
  gap at the bottom.