1.2.0:
	major changes in the cgi code:
		ch_cgi_value()		/* returns pointer to query values */
		ch_cgi_content_type()	/* sets HTTP Content-Type */
		ch_cgi_init_cook()	/* internal */
		ch_cgi_set_string()	/* sets query_string */
1.1.0:
	added ch_cgi_include()
