#167 Dummy view for importing committees and countries via admin panel.

Adjusted the admin view to load csv files. Things still to do: write a unit test, and make it functional (it currently returns an index error because the csv reader returns an empty list).
Avoid using raw URLs when possible. Instead, prefer to reverse URL names: https://docs.djangoproject.com/en/1.6/ref/contrib/admin/#reversing-admin-urls