LUCENE-5695: DocIdSet implements Accountable.


git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1602387 13f79535-47bb-0310-9956-ffa450edef68
LUCENE-5756: Implement Accountable from IndexWriter

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1602388 13f79535-47bb-0310-9956-ffa450edef68
Add Import Layout Table to idea codestyle

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1602389 13f79535-47bb-0310-9956-ffa450edef68