TurboGears/tgext.crud — pull request #18 by Yajo (2013-11-21 14:32:41+00:00)
Title: Correct test for selected

`is not False` throws `jinja2.exceptions.TemplateAssertionError: no test named 'False'`.

See docs for [lower-case `false` literal](http://jinja.pocoo.org/docs/templates/#literals) and [`sameas` test](http://jinja.pocoo.org/docs/templates/#sameas).