Don't restrict gender field to anything specific.
Fixes for Python 3.3 compatibility
Add documentation on setting up a test environment
Merge pull request #10 from mysociety/generalise-gender

Don't restrict gender field to anything specific.
Merge branch 'jpmckinney-python3'
Merge branch 'master' of github.com:openpolis/django-popolo
Post label can be blank according to Popolo
Merge pull request #12 from jpmckinney/patch-1

Post label can be blank according to Popolo
urls and note fields max_lengths increased for Link and Source classes
Merge branch 'master' of github.com:openpolis/django-popolo
image field added to Organization
national_identity field added to Person class; references to schemas added in comments
national_identity field added to Person class; references to schemas added in comments
Area model added (with some improvement proposals to the standard); area field added to organization
geom field is a Text field, to store textual representation (GeoJson, KML, GML)
Dateframeable behavior re-installed into Person class
area fields added to Membership and Post; other_label field added to Post
generic relations are optional for models extending GenericRelatable
generic relations to sources and other_identifiers in Area are optional; relations to area from Post and Membership are optional;
Person pk is now an AutoSlugField; Person is not Permalinkable any longer; object_id field in GenericRelatable mixin is now a CharField, to avoid casting problems