SOLR-4580: fix strip chroot call.

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_4x@1622325 13f79535-47bb-0310-9956-ffa450edef68
SOLR-4406: Fix RawResponseWriter to respect 'base' writer (merge r1622321)

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_4x@1622326 13f79535-47bb-0310-9956-ffa450edef68