Ideas for version 1.3 of www-techinfo gateway

	In whatis_type, if the keywords match a string in the
		gw.schemes file (http://, telnet://, gopher://, etc),
		then the type is L, meaning link.  Also, fix
		the "TELNET_SESSION" type nodes -- rewrite the entire
		buffer, set the keyword list to the corresponding
		telnet:// value.

	In whatis_type, if the keywords start with /html, then the
		document is a HTML document, not a menu, not an
		image, not a plain text document.  Use type 'H'.

	In whatis_type, if the keywords start with /techinfo or
		/penninfo, then the type is L, a link.  Re-write the
		entire keyword list, using /%s/%s/%s
		tiserver, tiport, oldkeyword list.


	In send_node_list, if the type is L (link), then
		use the nd.keyword list as the HREF=
		value, and use the nd.title as the name of the
		link.
		type H.

	In send_node_list, if the type  of the menu item is H (HTML), 
		then, in the HREF, send %s/%s/%s/%s
		tiserver, tiport, tinodeid, I_HTML


	In handle_request, if the optype is I_HTML, then call
		send_html_doc()

	New routine: send_html_doc();  Very similar to sending
		a plaintext document, only  1) don't print <plaintext>
		at the beginning and 2) as the HTML tags get sent,
		examine href tags.  If any of the names is
		href="/penninfo/[whatever], 
		then change the address in the HREF to 
			/localtiserver/localtiport/[whatever]

		If the href is 
		href="/techinfo/[whatever]", then change it to
		href="http://gwhost:gwport/[whatever].