Moved startChildController from ObservationControl to ChildControl so it is
available in all controller.

Installed signalhandler for PVSS update during quit.

State of the MACScheduler is written to PVSS during destruction. A signal handler is installed
(late enough to override the GCF signal handlers!) that triggers the transition to the
finishing state. In that state, the property is written and a timer is installed because
PVSS database writes are asynchronous. When the timer goes off (1 second) the MACScheduler
is closed.

bugfix

Bugfix

Made programs compatible with CodeLoggingProcessor.

Added heartbeat task.

Added code to update the PVSS Dynamic String Array 'activeObservations'.

Added support for starting the childcontrollers.

The ObservationController still used the ObservationController.conf file
during startup in stead of the ObservationController[x]{y} file in
/opt/lofar/share.
Introduced timers for the claim/prepare/start and stop events.
Supporting changes of these times in PVSS.

Bugfixes after testing.

Bugfixing after testing.

Introduced setStatte function.

Moved several sources to their definite place.

Moved Observation control to its right place. (was developped in MACScheduler
directory for convenience).

First (partially) working chain with MACScheduler and ObservationControl.
Startup sequence is OK.

Renamed state UNKNOWN to state NOSTATE. Changed names of PVSS variables
to their final(?) names.

Merge MAC-CS1-branch with HEAD. See MAC/Journal for changes.

Redesign of Main Control Unit software.