Updated quick start project set up order

Trivial doc updates

Add test for SerializerMethodField

+ Explicitly specify module names in the standard format similar to all
the other tutorials
+ Remove the extra quote around module name

Fixed small typo in docs

ModelSerializer.restore_object - wrap ValueError error in a list

When a ValueError is raised in ModelSerializer.restore_object, the error
is set to a one-element list, rather than a bare string.

Refactor JSONRenderer slightly for easier overriding

docs: add reference to gis serializer

docs: add reference to DRF-gis in fields

added reference to GeoFeatureModelSerializer of django-rest-framework-gis

added django-rest-framework-gis to third party packages section in /docs/api-guide/fields.md

Updated links to Bootstrap components

The previous links landed on the the main page and no longer directly linked to specific areas.

Include query parameter override instructions for OrderingFilter

I added a brief description of how you could specify a different query parameter for the OrderingFilter.

minor doc fix, @api_view() needs an iterable