Merge branch 'devel' into feature-owner-rest
fixed logging config
Merge branch 'feature-owner-rest' into devel
added basic service classes for key pairs, key store, and certificates
Merge remote-tracking branch 'origin/devel-interim' into feat-security
added signing rdf functionality
fixed initialization of cryptography service classes
Cryptography: changed algorithms for signing to ECC
fixed WonSignerVerifierTest
fixed initialization of key store if no key store file is existing
fixed initialization of key store if no key store file is existing (#2)
started integration with signingframework
added examples with signature for the need creation step: possible need RDF structure
updated graph signing examples
Issues Resolved

- LDP:Container removed from needModel
- solrServerURI made configurable in matcher.properties
- introduced NeedPojoNeedModelBuilder for NeedController and RestNeedController
Merge branch 'feat-backend' into devel-interim-merge2
Issue #26 Resolved

- NeedState check
integration with signingframework

- initial implementation of converter between named graph representation in Jena (Model) and the on in Singingframework (NamedGraph)
- initial implementation of our own Assembler that places the signature triples in defined by us RDF structure
Bug fix

- matcherTestBot was not working due to wrong if statement in OPNSC
continue implement converter between Model(Jena) and GraphCollection with one NamedGraph( Singingframework)

- add support for Resource DataType when converting it into String for when creating Signingframework triple
- add input test file that contains objects with data types (for testing)
- change converter method signature to simplify the usage
- change ModelConverter tests not to hardcode graph name to be tested