add _create_function to dill to enable saving a function's dict; added tests
add _create_function to dill to enable saving a function's dict; added tests


git-svn-id: 3bcb196c218a53705e72e83ab3432f0383ffd6ab@621 8bfda07e-5b16-0410-ab1d-fd04ec2748df

RaoUmer/klepto