When parsing (S)CSS, check for html.class in stead of .class

[qikkeronline]

Hi there,

I would love the possibility of scoping the checks a bit more, (e.g.) now when I reference an .svg file inside my SCSS, customizr also includes the SVG modernizr check (while unneeded).

Thanks, and kind regards,

Gerben van Dijk, Qikker Online