Added accounting stats plugin and support through extra columns in the users table and a config section in the config file

Added better runfile ownership and security. pid & cache file
are now stored in /var/run/smradius by default and the log file
is stored in /var/log/smradius by default . user= and group=
will apply to both of these now.

Added support for abuse prevention using the below configuration item
[radius]
use_abuse_prevention=yes

Moved use_packet_timestamp from [server] to [radius]

Added additional profiling informaion to logging messages

Enable the use of the disabled parameter for admin user and group attributes in the webgui. Allow smradiusd to select enabled attributes.

Indexed PeriodKey column

Check if user is disabled

Pass datetime as text to DBSelect
Selected topups ValidFrom must equal the first of the current month

* Modified NAS-Port-Id to use a blank default if not defined (in the case of vpn's)

Added UPGRADING file for upgrading information from previous revision

Added default config get
Added client config get

Added mod_config_sql_topups queries to config

* Make userdb macros entirely dynamic

* Use  request.  and not  authentication. as macros

* Fixed incorrect configuration, we need to load the config module for system, not the userdb module

Added initial support for realms and realm attributes

* Added template queries to the smradiusd.conf file

* Added authentication mechanisms & users config section