Rendering the template with the correct redirections. Not creating redirections for posts that are not imported.
Enable redirections by default so that a user with a generated config can start without doing this. Small pep8 adjustments.
REDIRECTIONS is commented in conf.py.in again. Now enabling it in the wordpress import plugin.
Merge pull request #346 from okin/import_url_map

Redirections created during the import from wordpress are now written to conf.py