changes to Opera table

based on the meeting discussion and review of the table against Opera's 
more detailed notes (which I have also posted), I'm making the following 
changes to the Opera table:

XXX - Does Not Conform Basic
XXIX - Does Not Conform Basic
XVII - Conforms Basic
XVII - Conforms Basic
XXIII - Does Not Conform Advanced
CII - Conforms Advanced

I'll be uploading the updated table to the Implementation report area.
Yngve, Jan Vidar and Thomas (at least) should double check each of these 
to ensure they understand and agree.