This update changes the test the check_deamon job does from
using the simple PING protocol to using the internal CRON 
table when testing if daemons are running.

In addition to a valid protocol exchange the server or client
is also verified to have at least one valid cron entry present.

Some linux kernels have problems with occasional hangs on futex locks.
This can cause an Open-iT process to hang completely, not even responding
to kills.  This patch makes check_daemon, which typically runs every hour
from crontab, able to detect and kill hanging daemons.  Without this
patch, check_daemon itself would hang, resulting in one new hanging process
each hour.
This patch is also prefered on non-linux hosts, as it makes check_daemon
more robust.

This patch is an update of patch 247.  It changes the default timeout
from 5 seconds to 60 seconds to avoid problems on overburdened hosts.
In addition it is now possible to enter a custom timeout in
/etc/opt/openit/openit.cfg using the variable "DAEMON_TIMEOUT".

Some linux kernels have problems with occasional hangs on futex locks.
This can cause an Open-iT process to hang completely, not even responding
to kills.  This patch makes check_daemon, which typically runs every hour
from crontab, able to detect and kill hanging daemons.  Without this
patch, check_daemon itself would hang, resulting in one new hanging process
each hour.
This patch is also prefered on non-linux hosts, as it makes check_daemon
more robust.