Return a HttpResponse in seed_db
Also moved the adding of the django patterns to where they belong so
that they do not get added multiple times.
Patch by: Sverre Rabbelier
{% comment %}Licensed under the Apache License, Version 2.0 (the "License");you may not use this file except in compliance with the License.You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0Unless required by applicable law or agreed to in writing, softwaredistributed under the License is distributed on an "AS IS" BASIS,WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.See the License for the specific language governing permissions andlimitations under the License.{% endcomment %}<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"><html lang="en"><head><title>500 Server Error</title></head><body><h1>500 Server Error</h1></body></html>