Add default of FALSE to allowing all origins in cross-domain requests. Remove old CORS code that was commented out.

Update Web UI to default to /ui/index.html for any request to /ui/. Also add in a filter for allowing any origin.

Updated Restlet from 2.2M3 to 2.3.1. Included with the update is full SSL support for the REST API, either all-access+encryption or restricted-access+encryption (truststore verified clients only). Additional options have been added to floodlightdefault.properties in order to turn HTTPS on/off. HTTPS ccan be used in conjunction with vanilla HTTP as well -- each must reside on a different TCP port though. Also, this time, I remembered to update and test the build.xml file to remove the old and include the new Restlet jars.

Added REST API support for getting list of loaded and all modules. Tinkered with Web UI's flow action display. The problem is that the actions (write and apply) will not display for any flow. Need to spend some time figuring out the issue.

Clean up serialization for REST APIs.  Get rid of the jackson converter module and just use annotations everywhere when appropriate.  There may still be a desire for something like the jackson converter module but it didn't really mesh with the plugin system, and the annotations work nicely.

Initial support for OVS-style role request messages and maintaining connections with switches in a backup role [#23366119].
Added REST API to get/set the current role of the controller [#2336329].
Added simple health check REST API [#23364299].
Fixed off-by-one error in the message code values for the role request/reply messages.

Use Java properties (either via config file or command line) for per-module specific configuration files. Note: This obsoletes previous command line configuration properties apart from -cf (configuration file).

Fixed JUnit tests.