ETags aren't normal tokens by the RFC 2068 definition; they
	explicitly contain quoted strings and can include stuff *outside*
	the quotes as well ('W/' for a weak ETag).  So add a new function
	that treats *everything* except ',' and ' ' (and not even those,
	if they're in a quoted string) as part of the token, and fix the
	ETag checks to use it.

PR:		2065, 3657


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x@82715 13f79535-47bb-0310-9956-ffa450edef68