Release of siteSifter 2.9p41

Last updated 24th of Sepember, 2009

Under some rare circumstances the markup validation parser for WCAG 2.0 used the incorrect character set, and thereby produced false positives. Release 2.9p41 fixes this bug, and adds a number of improvements to both WCAG 1.0 and 2.0 parsers, including a beta version of a more advanced contrast ratio analysis algorithm.