[Serusers] radiusclient new generation

Folks, I've registered new radiusclient-ng project on BerliOS. This project is based on the existing radiusclient (approval is pending, first drop of code and project page should be available tomorrow). My goal is to merge in SIP-related changes from the SER, and also incorporate some other improvements that Porta made locally. Unfortunately current maintainer of the radiusclient doesn't respond to e-mail inquiries, which is the reason for the fork. Following is incomplete list of features to be implemented in the next revision of radiusclient library: - OOB support for SIP digest VSA attributes; - ability to bind library to some specific IP address, which is useful when there is a need to run several SER copies on the same machine but on different IP addresses; - full re-entrancy; - python bindings. If somebody has any other features in mind or is willing to help with the work please let me know. Thanks! -Maxim