• trim whitespace when detecting time zone by reading /etc/timezone.
• (Retina 0.3.2) better TEARDOWN handling with the default
  --rtsp-library=retina (see
  scottlamb/retina#34).
  This means faster recovery after an error when using UDP or when the
  camera's firmware is based on an old live555 release.
• (Retina 0.3.3) better authentication support with the default
  --rtsp-library=retina (see
  scottlamb/retina#25).