LUCENE-4608: Moved changes entry to bug fix section

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_4x@1428340 13f79535-47bb-0310-9956-ffa450edef68
LUCENE-4653: add deletes to TIW.testThreadInterruptDeadlock; fix a few places that didn't handle InterruptedException properly

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_4x@1428343 13f79535-47bb-0310-9956-ffa450edef68