* mod_proxy: Add in 'disablereuse' option for parity with similar

   mod_jk functionality.
      http://svn.apache.org/viewvc?view=rev&revision=627728



git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.2.x@655998 13f79535-47bb-0310-9956-ffa450edef68