Accept Merge Request #46 : (sxw-dev -> dev)

Merge Request: 修复代码中的冲突
Created By: @esp
Accepted By: @esp
URL: https://coding.net/u/virusdefender/p/qduoj/git/merge/46

admin/views.py

@@ -11,4 +11,4 @@ class AdminTemplateView(APIView):
         try:
             return HttpResponse(open(path).read(), content_type="text/html")
         except IOError:
-            raise Http404
+            raise HttpResponse(u"模板不存在", content_type="text/html")