Updated demo collection's import documents to use dc.Title, dc.Language and dc.Subject fields in place of their dls.* equivalents, as these are common to both dc and dls metadata sets. The collect.cfg for GS2 has now been updated to make use of this. Similar changes have been to GS3's gs2mg, gs2mgpp and lucene-jdbm demo collection's collectionConfig.xml files. Now adding in the dublin core metadata set file into the collection as one of its metadata sets, so that gli can load it.