Django render_to_response fix is not in pypi 3.5.2 package

[srstsavage]

The following commit fixed the removed Django render_to_response command:

b7d36e6

It's included in git tag 3.5.2, but this change is not present in the 3.5.2 dataone.gmn package published on pypi.

I'm working around this for now by installing the pip package via git using git+https://github.com/DataONEorg/[email protected]#subdirectory=gmn/src, but if it's easy to push an updated pypi package that would probably make sense.