LUCENE-5207: maven/idea config

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/lucene5207@1522788 13f79535-47bb-0310-9956-ffa450edef68
LUCENE-5207: simplify tests

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/lucene5207@1522798 13f79535-47bb-0310-9956-ffa450edef68