SOLR-3617: backport bin/solr scripts into the 4.10 branch

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/lucene_solr_4_10@1619490 13f79535-47bb-0310-9956-ffa450edef68
SOLR-6233: backport SolrCLI (needed by bin/solr scripts) into the 4.10 branch

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/lucene_solr_4_10@1619491 13f79535-47bb-0310-9956-ffa450edef68