Restructure Alliance Auth package (#867)

* Refactor allianceauth into its own package

* Add setup

* Add missing default_app_config declarations

* Fix timerboard namespacing

* Remove obsolete future imports

* Remove py2 mock support

* Remove six

* Add experimental 3.7 support and multiple Dj versions

* Remove python_2_unicode_compatible

* Add navhelper as local package

* Update requirements

allianceauth/groupmanagement/admin.py

@@ -0,0 +1,28 @@
+from django.contrib import admin
+from django.contrib.auth.models import Group
+
+from .models import AuthGroup
+from .models import GroupRequest
+
+
+class AuthGroupAdmin(admin.ModelAdmin):
+    """
+    Admin model for AuthGroup
+    """
+    filter_horizontal = ('group_leaders',)
+
+
+class ProxyGroup(Group):
+    class Meta:
+        proxy = True
+        verbose_name = Group._meta.verbose_name
+        verbose_name_plural = Group._meta.verbose_name_plural
+
+try:
+    admin.site.unregister(Group)
+finally:
+    admin.site.register(ProxyGroup)
+
+
+admin.site.register(GroupRequest)
+admin.site.register(AuthGroup, AuthGroupAdmin)