Removed the daemon_gid option and enhanced the daemon_uid option so that it
retreives the group membership for daemon_uid from the OS. This fixes a bug
in 1.4.1 where it was not possible to define multiple group members with
Fixed a security issue with EXEC / PREXEC / unknown_trap_exec that could
allow malicious shell code to be executed.
Fixed a bug with EXEC / PREXEC / unknown_trap_exec that caused commands to
be run as root instead of the user defined in daemon_uid.
Added the snmptt.ini option daemon_gid to allow the gid to be set in
addition to the uid. Defaults to 'nobody' if not defined.