Next round of refactoring. Attempting to normalize the terminology used. Fixed some bugs that have been around for a while too.

This is a huge commit. Lots of (good) stuff has been added and updated. First and foremost, OpenFlow 1.5 is now supported (yay) via a major update to OpenFlowJ-Loxi. This update necessitated the update of the Static Flow Pusher module and MatchUtils, ActionUtils, and InstructionUtils to support the newly-added features. This prompted me to explore the SFP to see if there was anything that could be improved. First thing that came to mind was adding support to push OpenFlow groups in addition to flows, thus group support has been added to the SFP via JSON, which is the format that should have been used in the first place. Action lists will be updated in the near future to be JSON instead of one massive ',', '=', and '->' delimited string. Thus, the Static Flow Pusher has been renamed the StaticEntryPusher, since it now encompasses groups. While groups were being added to the SFP (ahem...SEP), a number of optimizations were made to the SEP code, greatly reducing its complexity (IMHO). The support for OpenFlow meters can now be added rather trivially in the future, if desired. Last thing to note about the SEP is the work-in-progress addition of a 'schema' API to allow northbound applications to get information about SEP syntax. This is not complete yet, but the skeleton code is in place. Next thing in this pull request is miscellaneous changes throughout the controller, primarily in (de)serializers and REST APIs to support OpenFlow 1.5. Next item of business is the removal of the DebugEventService. This is an artifact of days past and need not clutter the controller anymore. Same goes for the TestModule; now that we have better tutorials and documentation on the wiki, an example isn't necessary. And, last but not least, some old libraries that weren't being used have now been removed.

Many REST ingest schemes (e.g. Graylog "JSON path from HTTP") expect servers to return well-formed JSON objects.  Floodlight is sometimes returning values that lack root objects.

Was:
   [ <list-of-device-objects>]

Now:
   { 'devices' : <list-of-device-objects> }

Tidy up topology and get rid of some many redundant functions in ITopologyService. Also, fix a bug that prevents outgoing broadcast ports from being queried on single-switch islands.

VLAN wildcard is null, unlike others. REST API now returns correct devices across all VLANS when VLAN is unspecified.

Added some IPv6 tests and added the IPv6 secondary index to the device manager's init function (ooops).

A new and improved device manager (woohoo). We support IPv6 now and have fixed some bugs. Other changes have been made to prefer 'empty/zero' objects instead of null, which made using the device manger less type safe and more error prone. Unit tests for IPv6 packets will come next, so IPv6 support should be considered experimental for this commit (although in theory it should be fine if IPv4 is).

Patched ARP class to use MacAddress, IPv4Address, and ArpOpcode, as it should. This makes it safer and avoids primitive data types.

Updated all unit tests with the uncommenting of debugcounter stuff in the previous commit. For the most part, initialized the MockDebugCounterService and provided it to the MemoryStorageSource to allow counters in the AbstractStorageSourceService.

Removed all deprecated flowcache references and marked all flowcache classes as deprecated. Also TODOed the OFMessageDamper Forwarding module unit test. It will always fail until tthe OFMessageDamper is fixed to ignore the XIDs in OFMessages.

Some Firewall unit test fixes. Went through all code and corrected pi.getInPort() to (pi.getVersion().compareTo(OFVersion.OF_12) < 0 ? pi.getInPort() : pi.getMatch().get(MatchField.IN_PORT)). OF1.2 and greater specifies the ingress port as an OXM in the Match.

Fixed some DeviceManager unit tests and (not quite a bug but) an issue converting an Entity to a SyncEntity, which requires primitives for serialization. I tried to supply the MacAddress, IPv4Address, etc JSON serializer classes via the @JsonSerialize annotation, but the serializer still didn't do it...

VirtualNetworkFilter unit tests complete. Found bug in Entity in devicemanger package where null doesn't mean no switch or port anymore; DatapathId.NONE and OFPort.ZERO do instead. An object will always be there (not null), but it's contents will specify whether the Entity has a switch port or not.

Fixed more unit tests. Found another place in TopologyInstance.java where I accidentally used shallow compares instead of deep when checking to see if two links are symmetrical.

Fixed some more unit tests. Have some device manager issues maybe. Many of the remaining unit tests to fix seem to tie back to the device manager.

Fixed some more unit tests. In the process, discovered some errors in more overridden equals(). Also, discovered I had inadvertently commented out an important few lines the routing module uses to set the ingress port of flows used in the route. Those lines are now ported and use MatchUtils to copy the Match properly.

Add 'json' to the DeviceManager's REST API to be consistent with the rest. Ending the path in a / is bad REST practice.

2. Use the serializer for some object.
3. Fix the bug in the buildRoute method on the ToplogInstance

2. Use the string to present the vlan value instead of hexidecimal.
3. Fix the id in Cluster.
4. Fix the serialize method of OFPort.

Quick fix for OF1.0. Should find a way so that all modules don't have to worry about how to get Match from PI. OF1.0-1.2 use pi.getInPort(); OF1.3 uses pi.getMatch(MatchField.IN_PORT). Workaroud is: (pi.getVersion().compareTo(OFVersion.OF_13) < 0 ? pi.getInPort() : pi.getMatch().get(MatchField.IN_PORT))

VLAN matches added conditionally to Forwarding flows. Started moving sync code to the OFSwitchManager; not sure if SyncService needs to live there too.

Ethernet fixed; proto = byte, not short. Fixed DeviceManager; toString() of Entity corrected and misc bugs. Fixed Forwarding; forgot to initialize OFSwitchService reference. Basic Forwarding works! Known issue: Forwarding only matches switch port numbers...

Forgot to update overridden equals() for many classes in devicemanager package. Devices are now compared correctly and are learned and not added repeatedly.

Working on device manager. Currently devices aren't being saved, or cannot be located after they are stored...I'm searching incorrectly for devices and entities or am not saving them correctly or at all.

This reverts commit 4ae94669.

Refactored structure of core components to work with openflowj-loxi.
Presently refactoring Routing, Firewall, Forwarding, DeviceManager,
LinkDiscovery, Topology, and LearningSwitch.
Hub has been refactored.

1) new event for BVS Interface(s) assigned
2) new EventFieldTypes for LIST_OBJECT, SREF_OBJECT and SREF_LIST_OBJECT
3) removing LIST_VLAN from EventFieldType as it is superseded by LIST_OBJECT