SOLR-5576: Move CHANGES to 4.6.1

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_4x@1553958 13f79535-47bb-0310-9956-ffa450edef68
SOLR-5580: NPE when creating a core with both explicit shard and coreNodeName.

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_4x@1553968 13f79535-47bb-0310-9956-ffa450edef68
SOLR-5552: Add CHANGES entry
SOLR-5569: Add CHANGES entry
SOLR-5568: Add CHANGES entry

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_4x@1553971 13f79535-47bb-0310-9956-ffa450edef68
SOLR-5547: Move CHANGES entry to 4.6.1

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_4x@1553980 13f79535-47bb-0310-9956-ffa450edef68
SOLR-5577: Don't start a timer on disconnect if we are already closed

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_4x@1553982 13f79535-47bb-0310-9956-ffa450edef68
SOLR-5496: Move CHANGES to 4.6.1

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_4x@1553986 13f79535-47bb-0310-9956-ffa450edef68