Changelog:
* Changed: Within all bins /dev/zero to /dev/null
* Removed: Symlinks of backwards compatibility: tui-cat and tui-printf
* Updated: tui-print, hopefully fixed wrong placed error 'option not found'
* Updated: tui-status, better aligned status output, were over-corrected
* Updated: tui-echo, set '-e' as default (doUnderstand=true)
Roadmap:Prepare 'bin/tui' to parse struct which will provide the 'tui-<sect>-<cmd>' syntax with spaces.