LUCENE-4978: invert biasContains on query side

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/lucene_solr_4_7@1581019 13f79535-47bb-0310-9956-ffa450edef68
LUCENE-5549: punting on this test bug for now

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/lucene_solr_4_7@1581020 13f79535-47bb-0310-9956-ffa450edef68