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/src/main/java/org/onosproject/cordvtn/rest/NeutronMl2PortsWebResource.java b/src/main/java/org/onosproject/cordvtn/rest/NeutronMl2PortsWebResource.java
index 21bbda4..7c7c356 100644
--- a/src/main/java/org/onosproject/cordvtn/rest/NeutronMl2PortsWebResource.java
+++ b/src/main/java/org/onosproject/cordvtn/rest/NeutronMl2PortsWebResource.java
@@ -63,7 +63,7 @@
     @Consumes(MediaType.APPLICATION_JSON)
     @Produces(MediaType.APPLICATION_JSON)
     public Response createPorts(InputStream input) {
-        log.debug(String.format(PORTS_MESSAGE, "create"));
+        log.trace(String.format(PORTS_MESSAGE, "create"));
         return Response.status(Response.Status.OK).build();
     }
 
@@ -110,7 +110,7 @@
     @DELETE
     @Produces(MediaType.APPLICATION_JSON)
     public Response deletePorts(@PathParam("id") String id) {
-        log.debug(String.format(PORTS_MESSAGE, "delete"));
+        log.trace(String.format(PORTS_MESSAGE, "delete"));
         return Response.status(Response.Status.OK).build();
     }
 }