Added list_filter to AnObj admin

adim_project/adim/admin.py

 # coding=utf-8
 from __future__ import unicode_literals
 from django.contrib import admin
-from eav.admin import BaseEntityAdmin
 
 from adim.models import AnObj, Annotation  # AOSchema, AOType, AOAttribute, AOChoice
 
 
-class AnObjAdmin(BaseEntityAdmin):
-    pass
-    # form = AnObjForm
+class AnObjAdmin(admin.ModelAdmin):
+    list_filter = ('owner',)
 admin.site.register(AnObj, AnObjAdmin)
 
 # admin.site.register(AOType)