New fallback api and cleaned up specs

	modified:   app/api/api.rb
	modified:   app/models/database_adapter/database_adapter.rb
	modified:   app/models/doctor_locator/mock_doctor_locator.rb
	modified:   app/models/fallback_provider/fallback_provider.rb
	modified:   app/models/information_providers/compound_info_provider.rb
	modified:   app/models/information_providers/field_entry.rb
	modified:   app/models/localised_data_provider/localised_data_provider.rb
	modified:   spec/api/api_spec.rb
	modified:   spec/models/compound_info_provider_spec.rb
	modified:   spec/models/localised_data_provider_spec.rb
	modified:   spec/models/provider_instance_spec.rb