SOLR-6216: Better faceting for multiple intervals on DV fields. Thanks Tomas

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1612889 13f79535-47bb-0310-9956-ffa450edef68
SOLR-6232: fix logging of core init failures

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1612896 13f79535-47bb-0310-9956-ffa450edef68