SOLR-3711: Truncate long strings in /browse field facets

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_5x@1648042 13f79535-47bb-0310-9956-ffa450edef68
SOLR-3711: Truncate long strings in /browse field facets

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_5x@1648043 13f79535-47bb-0310-9956-ffa450edef68