Fix cut and paste error from documentation

This is trying to build a pagination of a news queryset.

HT tmarble for pointing this out.

Attempt to use Django 1.7 Paginator object.

Upon reading
https://docs.djangoproject.com/en/1.7/topics/pagination/#using-paginator-in-a-view

I wonder if we should simply follow this model for pagination of news
items. I've attempted to adapt that herein. This is a first attempt
and likely will have issues.

Adapted Django application stuff for Conservancy; and normalized to string
"conservancy" within code and templates.