Definitions for RDFDataUnit
Core pom.xml update for dataunit-rdf module
Triple has URI as predicate
Changed access to triple's data (s, p, o)
Added Node, Literal and RDFFactory to create those
RDFDataUnit.extract return number of extracted triples
RDF module split into dataunit-rdf, dataunit-rdf-impl
Adjusted RDFDataUnit to contain methods currently needed
Adjusted doc
Adjusted - ordered tuple query needed in rdf-if
Changes related to rdf split
Merge origin/rdf-split into rdf-split

Conflicts:
	dataunit-rdf-impl/src/main/java/cz/cuni/mff/xrg/odcs/rdf/interfaces/ManagableRdfDataUnit.java
	dataunit-rdf/src/main/java/cz/cuni/mff/xrg/odcs/rdf/interfaces/RDFDataUnit.java
Added missing OrderTupleQueryResult if
Merge origin/rdf-split into rdf-split
Merge origin/rdf-split into rdf-split

Conflicts:
	dataunit-rdf-impl/src/main/java/cz/cuni/mff/xrg/odcs/rdf/interfaces/ManagableRdfDataUnit.java
	dataunit-rdf/src/main/java/cz/cuni/mff/xrg/odcs/rdf/interfaces/RDFDataUnit.java
Fixed problem with bad DataUnit type
Merge from master, rdf' test moved into the dataunit-rdf-impl, rdf project removed
Merge master into rdf-split

Conflicts:
	db/virtuoso/rdbms/data.sql
	frontend/src/main/java/cz/cuni/mff/xrg/odcs/frontend/gui/components/RDFQueryView.java
	module/RDF_extractor/src/test/java/cz/cuni/mff/xrg/odcs/extractor/rdf/SPARQLExtractorRequestTest.java
	module/RDF_loader/src/main/java/cz/cuni/mff/xrg/odcs/loader/rdf/SPARQLoader.java
	module/RDF_loader/src/test/java/cz/cuni/mff/xrg/odcs/loader/rdf/SPARQLLoaderRequestTest.java
	module/RDF_loader/src/test/java/cz/cuni/mff/xrg/odcs/loader/rdf/SPARQLLoaderTest.java
	rdf/src/main/java/cz/cuni/mff/xrg/odcs/rdf/enums/InsertType.java
	rdf/src/main/java/cz/cuni/mff/xrg/odcs/rdf/interfaces/RDFDataUnit.java
	rdf/src/main/java/cz/cuni/mff/xrg/odcs/rdf/repositories/BaseRDFRepo.java
The DPUs hold information about Vaadin version they were compile against and also require the Vaadin of version 7.1.8  - 8.0.0