added range checking for page_size and page_number for weblog-portletmodernized weblog-portlet codemoved weblog-portlet to the right placebumped version number to 5.10.1d1
Add the "/dotlrn" path without tailing slash to the exception listThis will cause just a redirect, but if the server is in a bad state, even this might take long.
Make sure a non-empty return URL is always provided when downloading a zipfile, or the javascript idiom implementing the redirect would return to the page itself and restart the archiving from scratch