Ruby in RELAX NG a:documentation

Currently it is a requirement that a:documentation elements
cannot have child elements.  This makes it impossible to
use features such as ruby and directionality controls, which
are implemented as elements.

This restriction should be, er, relaxed.

-- 
Not to perambulate             || John Cowan <>
    the corridors               || http://www.reutershealth.com
during the hours of repose     || http://www.ccil.org/~cowan
    in the boots of ascension.  \\ Sign in Austrian ski-resort hotel