Merged revision(s) 1555608 from lucene/dev/trunk:
One more try: closes #1, closes #2, closes #3, closes #6, closes #10 on github

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_4x@1555609 13f79535-47bb-0310-9956-ffa450edef68
SOLR-5577: don't start timer thread in constructor

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_4x@1555611 13f79535-47bb-0310-9956-ffa450edef68