Initial sketch of the GUI web-socket mechanics.

Change-Id: I5f481886fd45ce058be4aaf07fba466e702ae7ad
diff --git a/web/pom.xml b/web/pom.xml
index f846078..aad2134 100644
--- a/web/pom.xml
+++ b/web/pom.xml
@@ -131,6 +131,7 @@
                             com.fasterxml.jackson.databind,
                             com.fasterxml.jackson.databind.node,
                             com.google.common.base.*,
+                            org.eclipse.jetty.websocket.*,
                             org.onlab.api.*,
                             org.onlab.osgi.*,
                             org.onlab.packet.*,