SOLR-5795: New DocExpirationUpdateProcessorFactory supports computing an expiration date for documents from the TTL expression, as well as automatically deleting expired documents on a periodic basis

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1583734 13f79535-47bb-0310-9956-ffa450edef68
SOLR-5829: Allow ExpandComponent to accept query and filter query parameters

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1583802 13f79535-47bb-0310-9956-ffa450edef68
SOLR-5859 Harden Overseer restart

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1584069 13f79535-47bb-0310-9956-ffa450edef68
SOLR-5943: SolrCmdDistributor does not distribute the openSearcher parameter

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1584083 13f79535-47bb-0310-9956-ffa450edef68
SOLR-5795: harden leader check to log cleanly (no NPE) in transient situations when there is no leader due to election in progress

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1584097 13f79535-47bb-0310-9956-ffa450edef68
SOLR-5859: add OCP.getCollectionStatus() param description for 'clusterState' to stop 'ant precommit' bitching 'Javadoc: Description expected after this reference' and failing the build

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1584108 13f79535-47bb-0310-9956-ffa450edef68
SOLR-5859 removing accidental removal of SOLR-5908 changes

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1584115 13f79535-47bb-0310-9956-ffa450edef68