Fix bug where it was impossible to remove member or pool if class above (pool for members and vip for pools)  was removed before.

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.

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.

Patch load balancer to include source port in static flow pusher entry names. This will allow a single source host to have multiple connections load-balanced across multiple LB hosts.

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

Reapplied the LinkDiscoveryManager's patch from earlier (issue #471). Updated Ethernet.java to use EthType instead of short for EthTypes. In conjunction, bitmasked the LSBs of the ethertype as it is casted from short to int. This preserves the MSB (sign) as a data bit --> unsigned integer.

Verified all REST APIs except Firewall and VirtualNetworkFilter. Added JSON return for clearing SFP flows.

Moved a couple annoying debug messaged to trace wrt switch connections. Changed logback.xml to debug and higher-level. Removed unused imports and variables in some places to clean up warnings that have arisen over time/mods. Fixed the LoadBalancer so it works with OF1.0 and OF1.3; it no longer composes OFFlowMods using strings! =)

Fixed LoadBalancer unit tests! TODO: Need to change the LB to not compose flows with strings...yuck. This will make OF1.0/OF1.1+ support integration easier.

Fixed OFMessageDamper unit tests and removed context from within OFMessageDamper (not used with a switch write anymore).

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.

Static Flow Pusher supports all OF1.3 matches and most OF1.3 actions (with the exception of masks). LoadBalancer corrected; OFFlowAdd used instead of OFFlowModify and OFPort.ZERO correct to OFPort.ANY. ActionUtils, MatchUtils, and InstructionUtils added to support static flow pusher. Strings defining flow fields *standardized* for Floodlight in the new utils classes. This means the REST API for the SFP will expect a sligthly different syntax than the current REST API (for master and 0.90). We can change the field names easily though in the utils files. These names are also referenced for the keys the SFP uses to store flow match fields and actions, just to be consistent.

Fixed build.xml. Fixed/implemented workaround for remaining debug counter compile errors to allow compilation with ant. Static Flow Pusher now matches on all OF1.3 match fields; all OF1.3 actions/set-field are in progress now, but basic out-port action works.

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...