Fix submodule for Travis.
Merge branch 'release/1.0.0'

* release/1.0.0: (33 commits)
  Improve test coverage.
  Just use six.
  Make test.py use 2to3 build under Python 3.
  Update pytz for Travis.
  Fix reversed conditional.
  Change changed_fields to tuple.
  Add incomparable value test.
  Move metadata into module.
  Add requirements.txt into manifest.
  Add some more links.
  Update documentation.
  Update description.
  Add django minimum version requirement.
  Assume field changed if comparison fails.
  Remove tests for Django <1.5.
  Fix pycon formatting.
  Improve introduction.
  Add coverage.
  Improve tests.
  Fix kwargs updating when no fields have changed.
  ...

Conflicts:
	.gitmodules
Pluralize.
Escape plurals.

Weird.
Merge branch 'master' into develop

* master:
  Escape plurals.
  Pluralize.
  Fix submodule for Travis.