TunnelService only removes 'method' parameter

[Valdis Rigdon]

I'm using the default TunnelService, which works great.  Is there any 
reason only the 'method' parameter is removed from the Form/query string 
and not the other tunneled parameters?  For instance, since Firefox 
accepts 'application/xml' ahead of 'text/html', I'm often tunneling with 
'media=html' to force HTML, but then this parameter gets passed down to 
my Resource instances, and a simple check on Form.isEmpty() returns 
false, when I would expect it to be true.

Thoughts?