Remove method keyword argument from tostring()
Remove method keyword argument from tostring()

This is not present in Python 2.6 and defaults to XML in later
versions of Python.

jbittel/django-mama-cas,forcityplatform/django-mama-cas,harlov/django-mama-cas,jbittel/django-mama-cas,forcityplatform/django-mama-cas,orbitvu/django-mama-cas,orbitvu/django-mama-cas,harlov/django-mama-cas