This update include more backports from Klish 3.1.0, including, but not
limited to:
- Syslog fixes
- Return code fixes
- Changed library and plugin paths (!)
- TTY raw mode fixes
- Use raw mode for interactive commands
- Allow single quotes (') as alternative to regular quotes for commands
Signed-off-by: Joachim Wiberg <troglobit@gmail.com>