Implement SVG (SMIL) Animation

Bug 216462 (smil) - Implement SVG (SMIL) Animation

Anyway, with the patch, a Mozilla trunk nightly gains about 4.5% to their overall SVG score. Put another way, they score 25/116 on the SVG+SMIL animation tests in the Full test suite. While this isn’t in the league of current WebKit nightlies (and neither of these platforms are in the league of Opera 9+)

この調子で頑張ってくれ。