+Ver 1.80:
+* Remove snmp_clearsession. It is replaced by clearsession which supports both snmp and telnet
+ methods of removing a user from an access server. Add corresponding configuration directives
+ general_sessionclear_method and nasXX_sessionclear_method
Ver 1.78:
* Add a snmp_clearsession which can disconnect a user by using the Cisco AAA Session MIB
* Add a configuration directive general_sessionclear_bin