[Catalyst] Response Headers

[John M. Dlugosz]

Where is Content-Type being set?

I'd like to send it instead as application/xhtml+xml, if the Accept header of the request 
claims to take that.  I found this example of rewriting it in Apache, but it would be far 
easier to target the necessary pages, not to mention more elegant, if I did this within 
Catalyst.

|	AddType text/html .xhtml
	RewriteEngine on
	RewriteBase /
	RewriteCond %{HTTP_ACCEPT} application/xhtml\+xml
	RewriteCond %{HTTP_ACCEPT} !application/xhtml\+xml\s*;\s*q=0
	RewriteCond %{REQUEST_URI} \.xhtml$
	RewriteCond %{THE_REQUEST} HTTP/1\.1
	RewriteRule .* - [T=application/xhtml+xml]|