Changes to mod_auth_tacacs

1.0.2 Logging changed. libtacacs error goes to syslog. Failure are reported to Apache log files.
Fixed bug #1.
1.0.1 Updated for new libtacacs
tacacs_module renamed to tacacs_auth_module
1.0 Some cleanup to libtacacs.
0.9 First stable release.
0.8 Original release by Roman Volkoff