SOLR-1301: maven config: fix map-reduce test compilation problem by adding dependency on morphline-core's test jar

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1553281 13f79535-47bb-0310-9956-ffa450edef68
SOLR-2960: XPathEntityProcessor was adding spurious nulls to multi-valued fields

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1553285 13f79535-47bb-0310-9956-ffa450edef68