* IEntityClassifier only returns a single entity class per entity and all
  entities of a device must belong to the same entity class. Semantics for
  multiple classes was unclear.

* IEntityClassifier is now an IFloodlightService to have a cleaner way of
  setting the classifier to use (the classifier needs to be set before
  DeviceManager.startUp() is called).

[BSC-1838]

Don't set role again if it's the same. Partial fix for BSC-1835 (https://github.com/floodlight/floodlight/pull/190)

Fix a topo issue and comment updates. (https://github.com/floodlight/floodlight/pull/191)

2 - Fix some tabbing.

Make role change code more robust. (https://github.com/floodlight/floodlight/pull/189)

Update to getRoute() method to provide complete path even when only one switch is involved. (https://github.com/floodlight/floodlight/pull/188)

getRoute() method must provide the complete route from source port to destination port even when the route involves only one switch.  getRoute() must also not provide route from same switch-port to itself.

Refactoring of Route class. (https://github.com/floodlight/floodlight/pull/187)

Refactoring Route class and getRoute() methods to maintain and provide a sequence of switch-ports, rather than links.  Update unit tests accordingly.

Link discovery manager must send LDUpdates when port status change affects existing links. (https://github.com/floodlight/floodlight/pull/186)

Link discovery manager must send LDUpdate when port status change message is received if it affects any links that is already known.

Link discovery must ignore all externally-generated link-local frames.

Conflicts:
	src/main/java/net/floodlightcontroller/core/internal/Controller.java

system uptime support (https://github.com/floodlight/floodlight/pull/184)

system uptime support (https://github.com/floodlight/floodlight/pull/183)

Drop any LLDP with :00, :03, :0e coming from another network.

If a standard LLDP comes from a different network, we should drop it.  The standard LLDP mac address could be :00, :03, :0e.

Added compileall (https://github.com/floodlight/floodlight/pull/181)

Fixed missing paren in PythonServer

Use officially assigned BSN ethertype (https://github.com/floodlight/floodlight/pull/180)

Refactoring of methods in topology. (https://github.com/floodlight/floodlight/pull/179)

added `make check` alias for `make tests` (https://github.com/floodlight/floodlight/pull/178)

To ease our internal build process

Change LLDP destination mac to 01:80:c2:00:00:0e (https://github.com/floodlight/floodlight/pull/176)

Remove IRoutingService dependency from LinkDiscoveryManager.

UI: Fix topology graph, various other small improvements (https://github.com/floodlight/floodlight/pull/174)

Fixed to VirtualNetworkFilter. (https://github.com/floodlight/floodlight/pull/175)

Display port name (ethN, brN, etc.) for OVS ports.
Cleaned up some more formatting.