SOLR-6509: Solr start scripts interactive mode doesn't honor -z argument

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_5x@1626849 13f79535-47bb-0310-9956-ffa450edef68
can't use SimpleText for this test

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_5x@1626850 13f79535-47bb-0310-9956-ffa450edef68
add 4.9.1 Version constant and back compat indices

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_5x@1626853 13f79535-47bb-0310-9956-ffa450edef68