lower a message level to trace (https://github.com/bigswitch/bigswitchcontroller/pull/2414)

We'll now log when SwitchPortMatcher can't find the switch or port for a
packet its trying to match.

Bug fix: When tunnel links are identified, they should not be added to topology switchportlinks.  Update unit tests.

BVS-150 Snooping DHCP client announced hostname (https://github.com/bigswitch/bigswitchcontroller/pull/2255)

Minor cleanup in LBVip
Bug fix for removal actions in LoadBalancer

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.

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