vcs: report warning on start if vcsserver connection is not configured

rhodecode/config/environment.py

@@ -85,3 +85,5 b' def load_pyramid_environment(global_conf'
 
     if vcs_server_enabled:
         connect_vcs(vcs_server_uri, utils.get_vcs_server_protocol(settings))
+    else:
+        log.warning('vcs-server not enabled, vcs connection unavailable')