* improve GDI+ text rendering by rounding text position
* Change GDI+ rendering to AntiAlias TextRenderingHint by default
* Fix breaking urls when loading downloaded stylesheet
* Add GetElementRectangle to HtmlPanel and HtmlLabel
* update version to 1.4.13.0
* Better handling when YouTube/Vimeo video returns Not Found
* update YouTube video to cats
* Properly handle white-space "pre-line" and "pre-wrap" styles
* fix html comment handling
* fix case-senssitive url in css not working properly
Merge branch 'master'