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Merge branch 'master' of https://github.com/OpenRDF/rdf_backend

Conflicts:
	rdf_backend/business/com/openrdf/action/SearchAction.java
	rdf_backend/business/com/openrdf/dao/RDFDao.java
	rdf_backend/business/com/openrdf/dao/SearchDao.java
	rdf_backend/business/com/openrdf/service/SearchService.java