I18N docs tweaks
The attached patch contains the following changes:
topics/i18n.txt:
- Deleted text that talks about translating Django itself that was intermixed with the content about preparing applications/projects for L10N or translating an app. The content was either:
- Moved to internals/contributing.txt
- Replaced with links to that document
- Corrected the example regarding the usage of named-string interpolation to really demonstrate the concept.
- Added a clear "New in Django 1.0" (previously "New in Django development version") marker to the section about the language preferences cookie name.
- Deleted references to "validator messages".
- Added reST markup so the template code blocks get nicely Pygmented
- Reworded a bit the gettext on Windows section.
internals/contributing.txt:
- Reordered and fleshed out the steps about contributing/maintaining a Django translation.
(In [8946]) Fixes #8847 - a bunch of cleanups to the i18n docs. Thanks, ramiro!