Allow lower case tagName
Allow lower case tagName

If this is used to match inline SVG, tagName will be reported in lower case. By forcing tagName to upper case, we get support for SVG anchors.
kevinrodbe/skrollr-menu,uritzo/skrollr-menu,Prinzhorn/skrollr-menu,Prinzhorn/skrollr-menu,uritzo/skrollr-menu,kevinrodbe/skrollr-menu