documentcloud/backbone — pull request #1333 by gsamokovarov (2012-05-20 13:30:53+00:00)
Title: Export Backbone.extend

Hi Guys,

Recently I had to override the extend method for all of `Model`, `View`, `Collection` and `Router`. Exporting the `extend` function makes it easier for you to customize your inheritance.

Don't know if this is a common practice, it worked for me, maybe it can help someone else. I also did a little unit test for it too.

Tell me what you guys think.