Modernize parameter parsing (query and includelet paramters)
- handle invalid UTF-8 exception that might be triggered by "ns_parsequery" in newer versions of NaviServer - the new code is about 4 times faster than the old one - replaced array by dict - don't create helper procs on the fly but use "nsf::parseargs" if possible - added icanuse rules for * "nsf::parseargs -asdict" * "ns_parsequery -charset"