align line indicator in error message to map to the same line in the origin user-input. fixes #25.
moved ip whitelist to options
Merge pull request #26 from staabm/align_error_lineno

align line indicator in error message to map to the same line in the ori...
Merge pull request #27 from staabm/ipwhitelist

moved ip whitelist to options
Allow configuring options, closes #30