[fix bug 1082656] Order ModelChoiceField by last_name in forms.
Merge pull request #831 from akatsoulas/1082656

[fix bug 1082656] Order ModelChoiceField by last_name in forms.
[bug 1082656] Fix PEP8 violation.
Merge pull request #833 from akatsoulas/1082656

[bug 1082656] Fix PEP8 violation.