Clean-up of and javadoc to switch cluster computation code and corresponding
data structure.

Rewriting switch cluster computation to return strongly connected components in the presence of unidirectional links.  The notion of internal switchPort is also changed.

Fix mismatches of parameter names in Javadoc. (https://github.com/floodlight/floodlight/pull/10)

Fix mismatches of parameter names between in Javadoc and method definition (https://github.com/floodlight/floodlight/pull/9)

More modifications to controller init.

Replace LearningSwitch with L2 Forwarding. (https://github.com/floodlight/floodlight/pull/7)

Enable Forwarding. This replaces LearningSwitch and uses L2 shortest path routing to forward Packets. [#21940749]

Fixing a bug where floodlight doesn't provide a floodlight context, resulting in a null-pointer exception.

Remove unnecessary error log. (https://github.com/floodlight/floodlight/pull/6)

Add event history for packet-in and attachment-point

Fixed a typo in a javadoc comment. (https://github.com/floodlight/floodlight/pull/4)

Added command line options to change the port numbers (https://github.com/floodlight/floodlight/pull/3)

Adding more debug messages through OFMessageFilterManager's functions (for packet-in, packet-out, and flow-mods.).