Add tests reproducing the issue #4
Add tests of fields in serializers
In ListField, factor out validation of list value, and use it at beginning of from_native
sub error values are the error and not a list
Working around ValidationError issues

* I'm still not sure about how dicts are supposed to work inside ValidationError
* the messages attribute is a bit magical
* Will give this one last look over the following evening before merging this...
Fix usage of range in tests for python 3
Add DictField in-serializer tests; add tests of individual error messaegs to show current problem
Fix this up with NestedValidatorError
Fix last update for py3
and now python 2.6...
one last fix for 2.6: zero-length format fields ({})
Update setup.py and requirements

* Upgrade djangorestframework: 2.3.12 -> 2.3.13
* Update status from pre-alpha to beta
* Add supported python version 3.2
pep8 updates
Add package classifiers for supported py implementations
    Fix validation of nested items in lists and dicts

    * Use NestedValidationError to get a good collection of nested errors
    * Factor out type validation and utilize in from_native methods
    * Add tests reproducing the issue #4
    * Add tests of fields in serializers
    * Update setup.py metadata
    * updates for flake8