* Added a 'Cut' class to the 'rivwebapi' API.
* Modified the 'AddCut()', 'ListCut()' and 'ListCuts()' methods
to use the 'Cut' class in the 'rivwebapi' API.
* Added an 'EditCut()' method to the 'rivwebpyapi' API.
Signed-off-by: Fred Gleason <fredg@paravelsystems.com>