Fixed a typo in conf/forms.py.
Documentation will need a section on making fields translatable.
Lighter trans_null patching that doesn't touch settings.LANGUAGE_CODE.
Preliminary work on settings translation.
Fixed a typo and order in test_models_registration.
Fixed settings additions and made a couple of settings translatable.

Generally, all settings that are "textual" (words, sentences, slugs)
should be marked as translatable.