forward-comment re-implemented

[Aidan Kehoe]

 Ar an triochadú lá de mí Eanair, scríobh Andreas Roehler: 

 > BTW a re-implementation exists already in newcomment.el: comment-forward
 > 
 > docu says:
 > 
 > "Skip forward over N comments.
 > Just like `forward-comment' but only for positive N
 > and can use regexps instead of syntax."
 > 
 > Also doesn't move backward, what was needed too.
 > 
 > So far

So if we replaced the guts of comment-forward with your implementation,
would that suit you? I suppose we could replace any keyboard bindings to
forward-comment with it. 

-- 
¿Dónde estará ahora mi sobrino Yoghurtu Nghe, que tuvo que huir
precipitadamente de la aldea por culpa de la escasez de rinocerontes?