Removing some old dependencies in bgprouter.
Fixing the ICMP handlers in a couple of apps.
Adding some sample configs.

Change-Id: Id33e0effd9452558fc4d07d78b093f0818e96d23
diff --git a/src/main/java/org/onosproject/segmentrouting/IcmpHandler.java b/src/main/java/org/onosproject/segmentrouting/IcmpHandler.java
index 0f8fa59..f65f03e 100644
--- a/src/main/java/org/onosproject/segmentrouting/IcmpHandler.java
+++ b/src/main/java/org/onosproject/segmentrouting/IcmpHandler.java
@@ -111,10 +111,10 @@
         icmpReplyIpv4.setChecksum((short) 0);
 
         ICMP icmpReply = new ICMP();
+        icmpReply.setPayload(((ICMP) icmpRequestIpv4.getPayload()).getPayload());
         icmpReply.setIcmpType(ICMP.TYPE_ECHO_REPLY);
         icmpReply.setIcmpCode(ICMP.SUBTYPE_ECHO_REPLY);
         icmpReply.setChecksum((short) 0);
-
         icmpReplyIpv4.setPayload(icmpReply);
 
         icmpReplyEth.setPayload(icmpReplyIpv4);