STANBOL-1218: Co-Mention engine now uses -20 as default ordering

git-svn-id: https://svn.apache.org/repos/asf/stanbol/trunk@1544515 13f79535-47bb-0310-9956-ffa450edef68
STANBOL-1219: merged implementation to the trunk

git-svn-id: https://svn.apache.org/repos/asf/stanbol/trunk@1544960 13f79535-47bb-0310-9956-ffa450edef68
STANBOL-336, STANBOL-1222: EntityDereference core module (first commit)

git-svn-id: https://svn.apache.org/repos/asf/stanbol/trunk@1545240 13f79535-47bb-0310-9956-ffa450edef68