[css-counter-styles] implementation of complex cjk counter styles

Hi,

I just submitted an implementation of longhand East Asian counter styles
for Firefox. You can find it at
https://bugzilla.mozilla.org/show_bug.cgi?id=934072 .

As described in comment 8 in the page mentioned above, this impl generates
a slightly different result with the current draft: for 11,111, it
generates "一万千百十一" in japanese-informal and "萬 千百十一" in
korean-hanja-informal; and it generates "一千万" for 10,000,000 in
japanese-informal. These modifications are based on the discussion in this
mailing list and replies from some of my native friends, and I also
referred to the result of Google Translate.

Hope this can be helpful.

Xidorn Quan