Fixed render bugs in render_to_temporary_file

[authcode]

No version of template render() has ever accepted a request argument, or a dict context. Conversely, render_to_string does accept an optional request kwarg.

It seems render_to_temporary_file() only works if the template argument is a string (i.e. path to a template file).

[maxpeterson]

No version of template render() has ever accepted a request argument, or a dict context.

django.template.backends.django.Template.render() accepts a request