* usr/share/doc/byobu/help.tmux.txt: LP: #1143342
  - rephrase window rename help text
* usr/bin/byobu-config: LP: #1166058
  - handle non-existant keybindings file
* usr/bin/byobu-config: LP: #1125469
  - define error() function
* debian/control:
  - lintian fixes
releasing 5.40
opening 5.41