Added simple end-2-end test for "instant city forecast" buttons.
Added simple end-2-end test for "instant city forecast" buttons.

atufkas/angular-openweather-app,atufkas/angular-openweather-app,smugcloud/angular-openweather,smugcloud/angular-openweather,smugcloud/angular-openweather,smugcloud/angular-openweather,atufkas/angular-openweather-app,atufkas/angular-openweather-app