add option to force slider fallback, even when HTML input range is supported

[nmsobri]

old title: Slider zoom in browser support html range

When in chrome it try to use new html markup that is range

Problem is, when it use html range instead of div in browser that does not support it, it totally not themeable through css

[JosephLenton]

The option here may be to force SkyBrush to use the fallback instead. I'd have this disabled by default, but I could build in an option to allow it.

[JosephLenton]

I've changed your title to better explain this option.

Btw you can actually style HTML ranges in Chrome, using webkit prefixes. However I agree, it's not as good as styling HTML.