Fixes for problems with starting and stopping apps in a minimal system

- Missing app dependencies
- Incorrect provider registrations
- Fatal execeptions thrown when external resources are not present

Change-Id: I3fdcf0666c88a47f399a722a9ab549d1104ff40e
diff --git a/apps/simplefabric/BUILD b/apps/simplefabric/BUILD
index 3fabae0..358adcd 100644
--- a/apps/simplefabric/BUILD
+++ b/apps/simplefabric/BUILD
@@ -11,6 +11,7 @@
         "org.onosproject.openflow-base",
         "org.onosproject.lldpprovider",
         "org.onosproject.hostprovider",
+        "org.onosproject.route-service",
     ],
     title = "SONA SimpleFabric",
     url = "http://onosproject.org",