install test-requirements.txt in docker/vagrant (use the same way)

Dockerfile

@@ -33,3 +33,4 @@ COPY . /tmp/module_build_service/
 WORKDIR /tmp/module_build_service/
 ENV MODULE_BUILD_SERVICE_DEVELOPER_ENV=1
 RUN python setup.py develop
+RUN pip install -r test-requirements.txt

Vagrantfile

@@ -35,7 +35,7 @@ $script = <<SCRIPT
     mkdir /etc/module-build-service/
     cd /tmp/module_build_service
     python setup.py develop
-    pip install -r /tmp/module_build_service/test-requirements.txt
+    pip install -r test-requirements.txt
     mbs-upgradedb
     mbs-gencert
 SCRIPT