Adding configuration option for VIPSCore URL

src/main/java/no/bioforsk/vips/coremanager/service/ManagerResourceImpl.java

@@ -65,7 +65,7 @@ import org.jboss.resteasy.client.jaxrs.ResteasyWebTarget;
 public class ManagerResourceImpl implements ManagerResource{
 
     
-    private final String VIPSCORE_URL = "http://localhost:8080/VIPSCore";
+    private final String VIPSCORE_URL = System.getProperty("no.bioforsk.vips.coremanager.VIPSCORE_URL");
     private final Integer VIPS_BATCH_SYSTEM_USER_ID = -10;
     
     @Context