Added example2.
Added Pool and Choice models for example2.
Added admin2 for polls.
Improved PollAdmin.
Fixed Poll was_published_recently.
Enabling admin for example2.
Added a home for example2.
Changed the example2 database name.
Merge branch 'develop' of git://github.com/twoscoops/django-admin2 into example2
Added tests for example2 admin index.
Added tests for example2 poll list view.
Added tests for example2 poll detail view.
Added tests for example2 poll create view.
Added tests for example2 poll delete view.
Added tests for example2 poll delete action.