2.0.2

This release makes some long-needed changes on error handling for Resource and its subclasses, plus support for both Django >= 1.9 and Tornado >= 4.0 and allowing alphanumeric PKs on all supported frameworks.

Features

• Allowed PKs with dashes and alphanumeric digits. (SHA: e52333b)
• Reworked test suite so that it uses tox for simultaneously testing on
  CPython and PyPy, both 2.x and 3.x (SHA: 2035e21, SHA: 9ca0e8c, SHA: 3915980
  & SHA: a1d2d96)
• Reworked Resource so that it throws a NotImplementedError instead of
  returning an HttpResponse from Django. (SHA: 27859c8)
• Added several HttpError subclasses. (SHA: e2aff93)
• Changed Resource so that it allows any serializable object on the response
  body. (SHA: 1e3522b & SHA: b70a492)

Bugfixes

• Changed JSONSerializer to throw a BadRequest upon a serialization
  error. (SHA: 8471463)
• Updated DjangoResource to use lists instead of the deprecated
  django.conf.urls.patterns object. (SHA: f166e4d & SHA: f94c500)
• Fixed FieldsPreparer behavior when parsing objects with a custom
  __getattr__. (SHA: 665ef31)
• Applied Debian's fix to Tornado tests for version 4.0.0 onwards. (SHA: 372e00a)
• Skips tests for all unavailable frameworks. (SHA: 8b81b17)