OrderedCollection is a marker interface that extens Collection. It
simply clarifies that the Collection has a well-defined iteration oder
although the interface itself doesn't specify the order. It's used to
return ordered PortChangeEvents

Topolgoy: don't remove ports the collection returned by the switch.  Make BVS port names case-insensitive

Fix snmp MIB problem and make two static variables final (https://github.com/bigswitch/bigswitchcontroller/pull/3428)

BigTest failure fix (https://github.com/bigswitch/bigswitchcontroller/pull/3430)

Conflicts:
	bigfloodlight/src/test/java/com/bigswitch/floodlight/BigOFSwitchOVSTest.java
	floodlight/src/main/java/net/floodlightcontroller/core/internal/Controller.java

Update thrift to newer version and regenerate files (https://github.com/bigswitch/bigswitchcontroller/pull/3402)

[BVS-498] Prefixes for port names can be specified in the properties file in order to classify the ports as uplink ports, thus not autoportfast them. (https://github.com/bigswitch/bigswitchcontroller/pull/3389)

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)

[BVS-498] Uplink port prefixes can be specified in bigfloodlight.properties.  This prefixes will be used for classifying a port as an uplink port, thus autoportfast will not be used on those ports.

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