exposing <time> element semantics

>From various discussions[2] think it might be useful to expose HTML element
role and datetime value(if present) of the time element [1], to the
accessibility layer.

Filed a bug on firefox to get some gauge of implementer interest
https://bugzilla.mozilla.org/show_bug.cgi?id=1095927




[1]
http://www.w3.org/html/wg/drafts/html/master/text-level-semantics.html#the-time-element
[2]
http://lists.w3.org/Archives/Public/w3c-wai-ig/2014OctDec/thread.html#first
--

Regards

SteveF
HTML 5.1 <http://www.w3.org/html/wg/drafts/html/master/>