Rewrite ConfigurationManager to wrap ConfigurationService. Removal of "dspace-config" and "dspace.configuration" system/servlet params

dspace-api/src/test/java/org/dspace/identifier/EZIDIdentifierProviderTest.java

@@ -126,8 +126,8 @@ public class EZIDIdentifierProviderTest
     public static void setUpClass()
             throws Exception
     {
-        // Find the usual kernel services
-        config = kernelImpl.getConfigurationService();
+        // Find the configuration service
+        config = new DSpace().getConfigurationService();
 
         // Configure the service under test.
         config.setProperty(EZIDIdentifierProvider.CFG_SHOULDER, TEST_SHOULDER);