created ZCMLLayer funciton which creates a class as layer instead of an instance. This is actually what zope.testing expects and we can now subclass layers correctly
created ZCMLLayer funciton which creates a class as layer instead of an instance. This is actually what zope.testing expects and we can now subclass layers correctly

ZeitOnline/zeit.cms,ZeitOnline/zeit.cms,ZeitOnline/zeit.cms,ZeitOnline/zeit.cms