Initial layout for country pages
Add additional assertions for country view

Test for the navigation items and part content.
Add Govspeak
Replace hard-coded data with a mock object

The mock object is designed to be an api-like 
response, although the response format is almost
certainly going to change in the near future and
certain elements of the view may have to be
changed.
Test that the country view is a successful request
Remove Govspeak

To ensure behaviour is as similar as possible to
other apps which use the content api, assume that
the part body in the api response is html markup.
Merge remote branch 'origin/country-view'