RegistryAPI with CXF client

DONE jgu add a test (if none yet) checking when at least 2 SoaNodeInformation are returned to client tests (Jersey, CXF, FraSCAti...)
DONE jgu in RegistryAPI, replace SoaNodeInformation[] by SoaNodeInformations.
DONE jgu Patch references (RemoteRepositoryInit, CodeDiscoveryRegistryClient and its use in JaxWSSourcesHandler), RegistryAPIImpl & enrich JsonMessageReader to make it work in rest client Jersey test
DONE mdu make the Registry API client work in CXF with minimal configuration. UPDATE How it's now done : JsonMessageReader/Writer are removed, the API is terser and more cleanly supports lists & maps using Jackson which works in FraSCAti (intent) and CXF (configuration), there's also a bonus XML / JAXB API... See RegistryAPI
DONE MDU add a test (if none yet) where an SOA node whose DocumentModel has a file:content Blob is returned, comment the content of JsonMessageWriter, check that SoaNodeInformationFactory is enough to skip the Blob and make the test work
DONE jgu remove custom JsonMessageReader & JsonMessageWriter (from EasySOAModule Jersey configuration, but also ClientBuilder and tests : AbstractRestApiTest, RestClientTest). Make Jersey client tests work. By the way, in DashboardMatchingSample.createAuthenticatedHTTPClient(), use ClientBuilder instead.
add RegistryAPI client tests (again : post, get(soanode) and get/query returning at least 2) for CXF and FraSCAti, make them work
DONE jgu use said CXF client in the proxy instead of the Jersey client, check that the new CXF mock works along

easysoa / EasySOA

RegistryAPI with CXF client #136