kriswallsmith/assetic — pull request #449 by mpdude (2013-06-06 23:06:53+00:00)
Title: Refactoring: Add a base class for filters

That way we can get rid of a lot of empty methods in filter implementations.
Additionally, it becomes easier to see in refactoring tools which class
actually overrides which filter method.

Btw, there's a lot of filters already :)