My "all content-types must be lowercase" change neglected param=value

pairs... and would downcase the value, which is a case-sensitive thing.
But, to be honest, the code prior to my changes neglected param=value
pairs.  Another case where we really should have some core parsing
routines that understand HTTP rather than the hodge-podge we have
now.

PR:		2394


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x@81528 13f79535-47bb-0310-9956-ffa450edef68