Added javadoc for all the helper classes in SDN-IP.

Also changed a couple of names to better reflect the usage or comply with
naming standards:
  in IBgpRouteService.java: getBGPdRestIp -> getBgpdRestIp
  in Prefix.java: MAX_BYTES -> ADDRESS_LENGTH

Change-Id: Id23b6bb077d79d671d21e2490ab410f322d7c166
diff --git a/src/main/java/net/onrc/onos/apps/bgproute/BgpRouteResource.java b/src/main/java/net/onrc/onos/apps/bgproute/BgpRouteResource.java
index 7580d51..9dd4b9b 100644
--- a/src/main/java/net/onrc/onos/apps/bgproute/BgpRouteResource.java
+++ b/src/main/java/net/onrc/onos/apps/bgproute/BgpRouteResource.java
@@ -61,7 +61,7 @@
 
             // the dest here refers to router-id
             // bgpdRestIp includes port number, such as 1.1.1.1:8080
-            String bgpdRestIp = bgpRoute.getBGPdRestIp();
+            String bgpdRestIp = bgpRoute.getBgpdRestIp();
             String url = "http://" + bgpdRestIp + "/wm/bgp/" + dest;
 
             // Doesn't actually do anything with the response