Print validation errors to console when using progress bar
Exit with 0 when calling kafo-configure --help
Merge pull request #19 from ares/master

Fixes #3175 - process exiting is handled more carefully
Merge pull request #20 from domcleal/validation-errors

Print validation errors to console when using progress bar
Merge pull request #22 from domcleal/help-exit-code

Exit with 0 when calling kafo-configure --help
Sort modules and parameters in --help output
Merge pull request #21 from domcleal/help-sort

Sort modules and parameters in --help output