Conflicts:
	floodlight/src/main/java/net/floodlightcontroller/core/OFSwitchBase.java
	floodlight/src/main/java/net/floodlightcontroller/core/internal/OFChannelHandler.java
	floodlight/src/main/java/net/floodlightcontroller/linkdiscovery/internal/LinkDiscoveryManager.java
	floodlight/src/test/java/net/floodlightcontroller/util/OFMessageDamperMockSwitch.java

BSC-2082 Simple java wrapper for posting notification  (https://github.com/bigswitch/bigswitchcontroller/pull/3363)

cleanup property files  (https://github.com/bigswitch/bigswitchcontroller/pull/3375)

Remove bigtap tests from cli coverage and ha tests. (https://github.com/bigswitch/bigswitchcontroller/pull/3359)

- Simple interfaces and a syslog implementation for notification.
- Post notification for switch disconnect, link add, link update or link rmeove.

Remove source and destination port status from LinkInfo data strucuture.  The source/destination port info is also removed in model and CLI.

1. making the API more RESTful by replacing dashes with slashes and maintaining URI tree
2. adding REST calls for listing events and resetting events
3. completing the REST API for GET calls

Conflicts:
	floodlight/src/test/java/net/floodlightcontroller/core/internal/ControllerTest.java

Comaprisions of port names and retrivials from IOFSwitch.getPort(String)
are now case-insentivie. However, we still store port names with their
original case.

This is a quick-fix were we lower-case the port name before adding it to
the port map in PortManager. Should really use a map with
case-insensitive keys...

* add methods to update/compare the ports of an IOFSwitch
* use ImmutablePorts
* OFPhysicalPorts -> ImmutablePort in most test

Some packaging tweaks (https://github.com/bigswitch/bigswitchcontroller/pull/3329)

Conflicts:
	bigfloodlight/src/main/resources/apps/bigtap.json

  1. Moving debug event for switch connect/disconnect to Controller (from LinkDiscovery) to be consistent with Shudong's changes
  2. Bug fix in OFChannelHandler that was causing NPE
  3. Bug fix in DebugEvents that was ignoring flushNow directive in event registry
  4. Updated unit test

Conflicts:
	floodlight/src/main/java/net/floodlightcontroller/linkdiscovery/internal/LinkDiscoveryManager.java

* Make all fields final or volatile
* Still not 100% safe (visibility): lastSeenTimestamp of the entities
  can be changed unsynchronized

 	Fix warnings  (https://github.com/bigswitch/bigswitchcontroller/pull/3312)

Includes framework for creating events and managing memory for events via
thread local stores and global circular buffers per registered event.
Also includes a basic rest api call to retrieve event history.
Unit tests have been added

* Make all fields final or volatile
* Still not 100% safe (visibility): lastSeenTimestamp of the entities
  can be changed unsynchronized