Exercise/HTMLPurifierBundle — pull request #16 by stof (2013-06-20 08:26:51+00:00)
Title: Added the branch alias for master and fixed requirements

``~4`` means ``>=4,<+INF`` as it allows bumping the major version. I don't think it is a good idea in this case.

Releasing a 1.0 tag would also be good as it would make the bundle friendlier for people using ``minimum-stability: stable`` (which is the case by default in the SE as of 2.3)