Merge pull request #129 from shummi/master

Implemented RootResourceProvider for virtual networks
Virtual network no longer contains IRootResourceAdministration capability.
Merge pull request #130 from adrian-rosello/fix/network-test-fix

Virtual network no longer contains IRootResourceAdministration capability
Merge pull request #131 from shummi/master

Moved request specific classes
Added id to toString()
Published ICoreModelCapability
Implemented toString()
Adapted isSupporting to avoid binding to NITOS
Implemented IRequestResourceMapping
Implemented IRootResourceProvider