We need to switch protocol handlers on protocol upgrade

Also added better support to webserver plugin to load statistics
pages if statistics is plugin is loaded.

* Support for interface groups
* Support for class CIR/Limit per interface
* Match priority support
* Totally dynamic TC class support per interface
* Totally dynamic TC filter support per interface per match priority
* Interface statistics support

* Added support for a better startup process
* Shifted some code to Start functions
* Added foundation support for priorities for each user
* Added preliminary code for the default user pool

* Added nice signal handling framework
* Support for users having an Expiry period

* Added webserver module
* Added radius dictionaries
* Got basic processing working