ONOS-2186 - GUI Topo Overlay - (WIP)
- Showing traffic on selected intent now subdues other elements.
- Augmented Highlights to allow for retrieval by ID.
- Reparented HostHighlight and DeviceHighlight to NodeHighlight.
- Added a few extra highlight unit tests.

Change-Id: I0de1cefdcfda58a6fec6e90be5fe898d35aa1b37
diff --git a/core/api/src/main/java/org/onosproject/ui/topo/HostHighlight.java b/core/api/src/main/java/org/onosproject/ui/topo/HostHighlight.java
index cb64e07..76669a8 100644
--- a/core/api/src/main/java/org/onosproject/ui/topo/HostHighlight.java
+++ b/core/api/src/main/java/org/onosproject/ui/topo/HostHighlight.java
@@ -20,7 +20,7 @@
 /**
  * Denotes the highlighting to apply to a host.
  */
-public class HostHighlight extends AbstractHighlight {
+public class HostHighlight extends NodeHighlight {
 
     public HostHighlight(String hostId) {
         super(TopoElementType.HOST, hostId);