Add missing newlines at the end of files

coin/configuration/admin.py

@@ -56,4 +56,4 @@ class ParentConfigurationAdmin(PolymorphicParentModelAdmin):
 class ConfigurationAdminFormMixin(object):
     base_form = ConfigurationForm
 
-admin.site.register(Configuration, ParentConfigurationAdmin)
+admin.site.register(Configuration, ParentConfigurationAdmin)

coin/configuration/forms.py

@@ -36,4 +36,4 @@ class ConfigurationForm(ModelForm):
         if offersubscription.offer.configuration_type != self.instance.model_name():
             raise ValidationError('Administrative subscription must refer an offer having a "{}" configuration type.'.format(self.instance.model_name()))
 
-        return offersubscription
+        return offersubscription

coin/members/forms.py

@@ -62,4 +62,4 @@ class MemberChangeForm(forms.ModelForm):
 
 
 class MemberPasswordResetForm(PasswordResetForm):
-    pass
+    pass