CGM mime registration

I've taken a look at the current cgm mime registration and taken a shot
at bringing it up to date and making the profile identification
optional.  I put it into Word so the changes are clear.  Please review
and coment.  The next step is to figure out how to get it submitted.  

Thx...Dave
 <<cgm_mime_update.doc>> 

Technical Fellow - Graphics/Digital Data Interchange
Boeing Commercial Airplane
206.544.3560, fax 206.662.3734
david.w.cruikshank@boeing.com