pytermwm v1.0.2

Added

• pytermwm version also lists every running session with the version its server runs, and warns when it differs
  from the installed one (a session keeps running its old code after an upgrade until it is restarted); --check
  exits with 1 then. Attaching to such a session warns too.

Fixed

• A status line message wider than the screen no longer blanks the whole status line; it is cut to fit.