Optimized Scripts admin page. Fixed related name for objects on attributes.

Repaired search. Removed some backwards compatible parts of picklefield since
we aren't supporting version older than 1.5 and they were obscuring the true
cause of some issues.

src/scripts/admin.py

@@ -21,6 +21,7 @@ class ScriptDBAdmin(admin.ModelAdmin):
     save_as = True
     save_on_top = True
     list_select_related = True
+    raw_id_fields = ('db_obj',)
 
     fieldsets = (
         (None, {