much improved documentation
simplify and parameterdomain work recursively and catch more simplifications/parameterizations
bug fix in canonical domain of points
Internal reorganization: all code involving maps was moved to a submodule FunctionMaps. This should be non-breaking, the contents of the namespace of DomainSets is preserved at least until the next breaking release
steps towards maps as an interface, similar to domains, to improve integration with existing packages (e.g. via extensions)