Some improvements on cordvtn

- Removed unnecessary CordVtnNodeConfig class
- Don't allow local and host management IP range overlapping
- Check node init state saved in the store instead of really check when a
  VM is detected or vanished since it's too slow

Change-Id: I076780bdc3946b2000176cb05805003ba7c8724d
diff --git a/apps/cordvtn/src/main/java/org/onosproject/cordvtn/rest/NeutronMl2NetworksWebResource.java b/apps/cordvtn/src/main/java/org/onosproject/cordvtn/rest/NeutronMl2NetworksWebResource.java
index 16bbc61..407926b 100644
--- a/apps/cordvtn/src/main/java/org/onosproject/cordvtn/rest/NeutronMl2NetworksWebResource.java
+++ b/apps/cordvtn/src/main/java/org/onosproject/cordvtn/rest/NeutronMl2NetworksWebResource.java
@@ -43,7 +43,7 @@
     @Consumes(MediaType.APPLICATION_JSON)
     @Produces(MediaType.APPLICATION_JSON)
     public Response createNetwork(InputStream input) {
-        log.debug(String.format(NETWORKS_MESSAGE, "create"));
+        log.trace(String.format(NETWORKS_MESSAGE, "create"));
         return Response.status(Response.Status.OK).build();
     }
 
@@ -52,7 +52,7 @@
     @Consumes(MediaType.APPLICATION_JSON)
     @Produces(MediaType.APPLICATION_JSON)
     public Response updateNetwork(@PathParam("id") String id, InputStream input) {
-        log.debug(String.format(NETWORKS_MESSAGE, "update"));
+        log.trace(String.format(NETWORKS_MESSAGE, "update"));
         return Response.status(Response.Status.OK).build();
     }
 
@@ -60,7 +60,7 @@
     @Path("{id}")
     @Produces(MediaType.APPLICATION_JSON)
     public Response deleteNetwork(@PathParam("id") String id) {
-        log.debug(String.format(NETWORKS_MESSAGE, "delete"));
+        log.trace(String.format(NETWORKS_MESSAGE, "delete"));
         return Response.status(Response.Status.OK).build();
     }
 }