Eine Menge Aufräumarbeiten.

* Eine Testsuite um Mahrjong Ranking Berechnungen zu testen
* Erste Arbeiten um die Workarounds aus dem "utils" Paket los zu werden.
* Vieles am Code umformatiert für PEP8 conformität

src/membership/migrations/0002_proxygroup.py

@@ -1,7 +1,8 @@
 # -*- coding: utf-8 -*-
 from __future__ import unicode_literals
 
-from django.db import models, migrations
+from django.db import migrations
+from django.db import models
 import django.contrib.auth.models
 
 

src/membership/migrations/0003_auto_20150820_2122.py

@@ -1,7 +1,8 @@
 # -*- coding: utf-8 -*-
 from __future__ import unicode_literals
 
-from django.db import models, migrations
+from django.db import migrations
+from django.db import models
 
 
 class Migration(migrations.Migration):

src/membership/migrations/0004_remove_membership_comment.py

@@ -1,7 +1,8 @@
 # -*- coding: utf-8 -*-
 from __future__ import unicode_literals
 
-from django.db import models, migrations
+from django.db import migrations
+from django.db import models
 
 
 class Migration(migrations.Migration):

src/membership/migrations/0005_auto_20150901_2204.py

@@ -1,7 +1,8 @@
 # -*- coding: utf-8 -*-
 from __future__ import unicode_literals
 
-from django.db import models, migrations
+from django.db import migrations
+from django.db import models
 import membership.models
 import utils
 import easy_thumbnails.fields

src/membership/migrations/0006_auto_20160916_1759.py

@@ -14,6 +14,7 @@ class Migration(migrations.Migration):
         migrations.AlterField(
             model_name='membership',
             name='gender',
-            field=models.CharField(blank=True, max_length=1, null=True, verbose_name='Geschlecht', choices=[(b'm', 'M\xe4nnlich'), (b'f', 'Weiblich')]),
+            field=models.CharField(blank=True, max_length=1, null=True, verbose_name='Geschlecht', choices=[
+                                   (b'm', 'M\xe4nnlich'), (b'f', 'Weiblich')]),
         ),
     ]