Change GUI and GUI2 to be apps rather than core features

Change-Id: I862e5bdbccc29fd78716159e168e7a14bc5053e1
diff --git a/tools/test/cells/demo-eu b/tools/test/cells/demo-eu
index 414fddd..0f7e8ef 100644
--- a/tools/test/cells/demo-eu
+++ b/tools/test/cells/demo-eu
@@ -6,7 +6,7 @@
 export OC3="10.100.198.203"
 export OCN="10.100.198.200"
 export ONOS_NIC="10.100.198.*"
-export ONOS_APPS=drivers,openflow,proxyarp,mobility,mlb,pathpainter
+export ONOS_APPS=gui,drivers,openflow,proxyarp,mobility,mlb,pathpainter
 export ONOS_GROUP=sdn
 export ONOS_SCENARIOS=$ONOS/tools/test/scenarios
 export ONOS_TOPO=geant