revises the supporting editor page so it sniffs the scrollbar width correctly, and no longer uses the hard-coded 12px which could be inaccurate under certain circumstances.
revises the supporting editor page so it sniffs the scrollbar width correctly, and no longer uses the hard-coded 12px which could be inaccurate under certain circumstances.

adds sniffer script from http://www.fleegix.org/articles/2006-05-30-getting-the-scrollbar-width-in-pixels
wireload/WKTextView,wireload/WKTextView,klaaspieter/WyzihatKit,klaaspieter/WyzihatKit