Moved (old style) configuration file to a more sensible location
Forgot to implement constructors for the GNode netsted subclasses
Implimented the domain agnostic portions of the supported Vector operations.
Temporary name change.  The vector class should extend from a variable class, but not the same class that represents a grid of data spanning the domain.  So the Variable class will be split, with most of it moved into the Field2 class (to be renamed once the original Field.cpp is not needed) and a small interface is left for the Variable class.
Began adding some of the cartesian specific implimentations.