Enable unchecked warnings: we have now only some violations in contrib and the recently introduced ones by Ryan. As we want to get rid of them (the contrib ones seem to be easy), I switch it globally on.
Enable unchecked warnings: we have now only some violations in contrib and the recently introduced ones by Ryan. As we want to get rid of them (the contrib ones seem to be easy), I switch it globally on.

git-svn-id: 308d55f399f3bd9aa0560a10e81a003040006c48@1003645 13f79535-47bb-0310-9956-ffa450edef68

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