Make bandpath accept unicode strings
Fixed a bug in the ``bandpath'' function in dft/kpoints.py to stop the function from giving an error if a unicode string is passed as the path.
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
Fixed a bug in the ``bandpath'' function in dft/kpoints.py to stop the function from giving an error if a unicode string is passed as the path.