edx/edx-platform — pull request #4177 by asadiqbal08 (2014-06-20 12:21:44+00:00)
Title: update data model max_length to 255

@cdodge I noticed that max_length of char field in shopping cart models was 256, I updated this value to 255 at max in models. In django char fields are restricted to 255 characters.
Kindly review it.

Thanks