Add ability to filter outbound messages while in SLAVE role

Added unit test for writing messages while in MASTER/SLAVE. Changed to a blacklist mechanism instead of a whitelist (to match how the spec describes invalid (write) SLAVE messages). Completed invalid SLAVE messages for each OF version.

Updated to properly handle IOFSwitch write()'s while in SLAVE role. TODO: make unit test for trapping invalid messages while in SLAVE. TODO: complete logic for handling valid SLAVE message types per OF version.

Netty4, bug fixes, and new OpenFlowJ-2.0.0

We can shutdown gracefully and not wait (as Netty3 did). If not waiting turns out to be a problem, we can wait again.

OMG, it was a timeout that was too short. Good news is that the bootstrap unit test passes. Bad news is that there is a timeout somewhere in the sync module that is way too long and causes the unit tests for sync to take literally a few minutes. Will look into that next.

Fixed a blunder in OFSwitchManager and Controller to allow switches to connect if a server IP isn't explicitly given in floodlihgtdefault.properties. Still can't get sync's bootstrap test to pass. Feels like a race condition b/t update threads.

Fix bug in ActionUtils. OF1.0 transport ports were being parsed as sh…

Fix bug in ActionUtils. OF1.0 transport ports were being parsed as shorts. For ports above 32767, this is bad.

Core ported to Netty 4 along with unit tests. Still need to do sync and some loxi-related compile errors in web.serializers.

Initial statistics module commit

Add OF-DPA helper functions

OF-DPA init and learning switch functions created. Possible use is commented out in ForwardingBase.java for the time being.

Fix data races in LoadBalancer and DHCPSwitchFlowSetter

Fix SFP bug pushing flow w/o switch ID specified

Fix fromString of MatchUtils OFVlanVidMatch issue

Fix fromString of MatchUtils OFVlanVidMatch issue

Fix for Firewall issue #590

The dl_type=ARP (or any other dl_type) is overwritten if dst-ip/src-ip are specified later on in the json object. I added condition that only overwrites the field if it hasn't been already specified. This case only applies for src-ip, and dst-ip.

Forwarding bug fix for edge-case simple topology

Single-switch islands list correct outgoing broadcast ports; tidy up topology service

Tidy up topology and get rid of some many redundant functions in ITopologyService. Also, fix a bug that prevents outgoing broadcast ports from being queried on single-switch islands.

Patch Forwarding's pushRoute and pushPacket

Patch Forwarding's pushPacket and pushRoute. We do not want to push a packet if the command is delete or delete-strict.

Revert hard and idle timeout to public