add soundfiles to admin

panikdb/emissions/admin.py

 from django.contrib import admin
 
 from .models import Emission, Episode, Category, Schedule, \
-        NewsItem, NewsCategory
+        SoundFile, NewsItem, NewsCategory
 
 class EmissionAdmin(admin.ModelAdmin):
     prepopulated_fields = {'slug': ('title',)}
@@ -37,3 +37,9 @@ class NewsItemAdmin(admin.ModelAdmin):
     pass
 
 admin.site.register(NewsItem, NewsItemAdmin)
+
+
+class SoundFileAdmin(admin.ModelAdmin):
+    pass
+
+admin.site.register(SoundFile, SoundFileAdmin)