ServiceProviderRegistryURIs::ServiceProviderRegistryURIs() shall not guess the SPC URI

[berezovskyi]

I was trying to figure out where acceptance tests define their URIs and the answer was: nowhere! The library code is set up to guess a URI if null is provided.

We shall not be doing this. OSLC Core 3.0 defines discovery on a given domain (and thus, a URI, if you strip off the original path) via a /.well-defined/ URI and not though some magic like "http://" + IPGlobalProperties.GetIPGlobalProperties().HostName+ ":8080/";

Unfortunately, this will be a breaking change.