Update to latest Clover bugfix release

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1576721 13f79535-47bb-0310-9956-ffa450edef68
LUCENE-5514: Remove outdated constants

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1576729 13f79535-47bb-0310-9956-ffa450edef68
LUCENE-5514: Update changes.txt

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1576736 13f79535-47bb-0310-9956-ffa450edef68
LUCENE-5518: minor hunspell optimizations

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1576738 13f79535-47bb-0310-9956-ffa450edef68
LUCENE-5512: remove redundant typing (diamond operator) in trunk

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1576755 13f79535-47bb-0310-9956-ffa450edef68
LUCENE-5522: FacetConfig doesn't add drill-down terms for facet associations

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1576790 13f79535-47bb-0310-9956-ffa450edef68