Adjustments to admin.py for view, fix Role using charfield as primary key, adjusted openstack/managers.py to fill the charfield instead of the pk
diff --git a/planetstack/core/admin.py b/planetstack/core/admin.py
index 741271c..a429520 100644
--- a/planetstack/core/admin.py
+++ b/planetstack/core/admin.py
@@ -41,16 +41,13 @@
 
 class UserInline(admin.TabularInline):
     model = User
+    fields = ['email', 'firstname', 'lastname']
     extra = 0
 
 class SliceInline(admin.TabularInline):
     model = Slice
     extra = 0
 
-class UserInline(admin.TabularInline):
-    model = User
-    extra = 0
-
 class RoleInline(admin.TabularInline):
     model = Role
     extra = 0 
@@ -230,7 +227,7 @@
 class SliceAdmin(OSModelAdmin):
     fields = ['name', 'site', 'serviceClass', 'description', 'slice_url']
     list_display = ('name', 'site','serviceClass', 'slice_url')
-    inlines = [SliverInline]
+    inlines = [SliverInline, SliceMembershipInline]
 
     def queryset(self, request):
         # admins can see all keys. Users can only see slices they belong to.