If the availability has been modified, we must check that all fields are filled in,
and that the number of work hours is within the range of the times specified.
This is called when a new Mbo is added to the Mboset collection.
It is called AFTER user defaults have been set from the data dictionary.
Programmer should usually override this to set some defaults.
Default behavior is to do nothing.
public void appValidate()
throws MXException,
java.rmi.RemoteException
If the availability has been modified, we must check that all fields are filled in,
and that the number of work hours is within the range of the times specified.