Scoped registrar/resolver's scope changes with subsequent calls to inScope/fromScope

[JoeRobich]

Currently when using the fluent scoped pattern of

var userRegistrar:IRegister = fluentFactory.inScope(User);
var groupRegistrar:IRegister = fluentFactory.inScope(Group);

userRegistrar.register(InMemoryUserRespository).asType(IRepository);

or

var userResolver:IResolve = fluentFactory.fromScope(User);
var groupResolver:IResolve = fluentFactory.fromScope(Group);

var userRepository:IRepository = userResolver.resolve(IRepository);

Both the userRegistrar and userResolver will use the the Group scope since the fluent interface passes out the same instance of the registrar and resolver.

[druttka]

Merged to develop by #23