If the client doesn't send q-values in Accept: give wilcards arbitrarily

low values, so that "Accept: image/gif, */*" on a request with variants
image/gif; qs=0.3 and image/png; qs=0.7 doesn't end up with the PNG.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x@76734 13f79535-47bb-0310-9956-ffa450edef68