Usage: rypper <uri> <selector>
Options:
--akephalos, -a uses akephalos-gem (HtmlUnit) for html-pages
--harmony, -j uses harmony-gem (envjs + johnson) for html-pages
--help, -h display help
--output, -o output directory
--overwrite, -w overwrite existing files
--referer, -r http referer for html request
--selenium, -s uses your firefox web-browser for html-pages