Refactor getDataType function names
Merge branch 'master' of git@github.com:InvarionHu/pdt.git

Conflicts:
	hu.invarion.ontology/src/hu/invarion/ontology/SPARQLOntologyServerForRegistry.java
	hu.invarion.provider.dsl.ui/src/hu/invarion/provider/ui/contentassist/ProviderLanguageProposalProvider.xtend
	hu.invarion.provider.dsl.ui/src/hu/invarion/provider/ui/hover/ProviderLanguageEObjectDocumentationProvider.java
	hu.invarion.provider.dsl.ui/src/hu/invarion/provider/ui/hover/ProviderLanguageEObjectHoverProvider.java