[counter-styles] i18n-ISSUE-339: Should Japanese spec styles match implementations or vice versa?

6.2 Alphabetic: lower-alpha, lower-latin, upper-alpha, upper-latin, 
lower-greek, hiragana, hiragana-iroha, katakana, katakana-iroha
http://dev.w3.org/csswg/css-counter-styles/#simple-alphabetic

The hiragana, katakana, hiragana-iroha, and katakana-iroha seem to be 
implemented in the same way in Firefox, Chrome, Safari, and now Opera. 
The implementation differs from the spec only by the addition of one or 
two characters to the basic set.

Should we change the spec to align with the implementations?

For more information see the test results at
http://www.w3.org/International/tests/repository/css3-counter-styles/predefined-styles/results-cstyles#simplealpha



(This comment has not been reviewed by the i18n WG)