byobu 6.16

• usr/share/man/man1/byobu.1:
  • add STATUS ICONS section documenting Unicode and ASCII icons
  • clarifies meaning of symbols like ⚠, ⟳, ‼, and 🗹
  • #79
• usr/bin/byobu-launcher.in:
  • prevent nested tmux sessions when Fish shell (or other shells) already run tmux
  • fixes "sessions should be nested with care" error on login
  • #76
• usr/lib/byobu/include/select-session.py:
  • fix byobu-select-session filtering out hyphenated session names
  • remove overly broad hyphen check that broke sessions like "project-foo-bar"
• debian/po/sv.po:
  • add Swedish translation for Debian installation templates
  • thanks to Luna Jernberg for the translation