Fix function tools.remove_namespace
Atm. this function only works for the following prefixes: mml40, fml40 and ml40 It won't return correct results for other prefixes and for nested namespaces (if allowed) like fml40::dilatect::MyValue.
Maybe it also makes sense to validate the input of the function to allow only valid class names. I.e. remove_namespace("fml40::123")
returns "123" which is not a valid python class name.