<br><font size=2 face="sans-serif">I have added reset. If called
from solver which has not implemented it it will throw an exception but
that won't break any existing code. Also added setInitialData in
base class which does a reset for base class. This should be included
in any reset function to be written.</font>
<br>
<br><font size=2 face="sans-serif">John Forrest</font>