bugfix for azure content with multibyte charactersThis change fixes two bugs:a) base64decode was used instead of base64urldecodeb) the binary flag is harmful, since this leads to double-encodingMany thanks to Sebastian Scheder for the fix.
Fix for sitebug #150 (security relevant)The login widget at the navbar contained in its query variablethe password of a user in plain text (e.g. when the user hasmistyped the password, but as well on other error conditions).Now, the password is filterer in the return_url in such cases.Many thanks to Khy H for reporting this bug.For details, seehttps://openacs.org//bugtracker/openacs.org/bug?bug_number=150