Floodlight subtree update

FLOODLIGHT - 25 - Static Flow Pusher update for OFPFC_MODIFY in the event that only action...

Merge into master from pull request #2128: pull request for BT-95 BT-44 (https://github.com/bigswitch/bigswitchcontroller/pull/2128)

Conflicts:
	bigfloodlight/src/main/java/com/bigswitch/floodlight/linkdiscovery/BigLinkDiscoveryManager.java

Add tunnelPortsUpdated variable to help track if tunnel ports were added or not when updates are applied.

Floodlight subtree update

Replace REST calls in load balancer module to use internal static flow pusher calls

Remove three dependent libraries accordingly.

Conflicts:
	bigfloodlight/src/test/java/com/bigswitch/floodlight/tunnelmanager/TunnelManagerPollTest.java

Arrgggh. Only whitespace changed.

retract ProducerConsumer unit test - will redo as junit before adding back

Floodlight-30

Floodlight-40-Small logical error, allowed me to push infinite rules with the same dat...

Refactoring of tunnel links/ports, link discovery, forwarding base, and appropriate modifications to unit tests.

Producer/consumer registration service.

Add isOutgoingDiscoveryAllowed(), isIncomingDiscoveryAllowed(), and getDiscoveryActions() as methods to facilitate changes to discovery procedures easily.

Squashed commit for floodlight subtree update glitch