Babel time related formatting functions in templates needs documentation

[jokull]

I would like to see these functions automatically added to the app context. Perhaps jinja2 should do this as the babel extension adds gettext to the context.

from flaskext.babel import format_datetime, format_date, format_timedelta
@app.context_processor
def inject_babel_formatting():
    return dict(format_datetime=format_datetime,
        format_date=format_date, format_timedelta=format_timedelta)

EDIT: Just noticed that these are exposed as filters already. Needs documentation.