SOLR-3619: clone configsets when starting examples or creating cores instead of using configsets directly; selectively clone the server directory when creating node1 for the cloud example; fix script error reporting

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_5x@1641965 13f79535-47bb-0310-9956-ffa450edef68
remove redundancy: randomcodec tested explicitly in perfield, asserting tested explicitly, etc

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_5x@1641967 13f79535-47bb-0310-9956-ffa450edef68
more test speedups

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_5x@1641973 13f79535-47bb-0310-9956-ffa450edef68
don't allow these two tests to run with simpletext

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_5x@1641976 13f79535-47bb-0310-9956-ffa450edef68
tone down test

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_5x@1641979 13f79535-47bb-0310-9956-ffa450edef68
more test speedups

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_5x@1641983 13f79535-47bb-0310-9956-ffa450edef68