SOLR-3358: Maven configuration: In solr-core POM, exclude log4j-over-slf4j transitive dependency from solrj dependency; otherwise, log4j clashes with it.
SOLR-3358: Maven configuration: In solr-core POM, exclude log4j-over-slf4j transitive dependency from solrj dependency; otherwise, log4j clashes with it.

git-svn-id: 308d55f399f3bd9aa0560a10e81a003040006c48@1327564 13f79535-47bb-0310-9956-ffa450edef68

apache/solr,apache/solr,apache/solr,apache/solr,apache/solr