DataPager styling & templating

[tomasherceg]

DataPager did not have a way to provide custom templates for page numbers, and there was no way to apply CSS classes or other attributes on inner <li> and <a> / <span> elements.

However, there is a bug here - when I use ListItemClass instead of ListItemclass, the attribute is rendered as Class and is not combined with Knockout JS binding css: { "class": something }.

It can be reproduced in ControlSamples/DataPager/DataPagerTemplates sample by changing the casing.

[tomasherceg]

I tried to track down the issue with ListItemclass vs ListItemClass, and it seems that HtmlWriter doesn't mind when it receives two attributes (class and Class) that differ only by case.

It happily renders both of them, and the browser interprets only the first one.