Ticket #2974 : all dirac tests checked and everything looks ok
Addresses issue #2925 .  I have changed things to use Function & func , and used default values of optional functions.  Also added some doxygen doco
Merge pull request #2978 from WilkAndy/feature_2925

Addresses issue #2925 .  I have changed things to use Function & func , ...
Merge pull request #2977 from WilkAndy/feature_2974

Ticket #2974 : all dirac tests checked and everything looks ok