Merge pull request #580 from edx/will/fix-devstack-release-update

Update config repo in devstack before running plays

vagrant/release/devstack/Vagrantfile

@@ -9,6 +9,13 @@ fi
 export PYTHONUNBUFFERED=1
 source /edx/app/edx_ansible/venvs/edx_ansible/bin/activate
 cd /edx/app/edx_ansible/edx_ansible/playbooks
+
+# Need to ensure that the configuration repo is updated
+# The vagrant-devstack.yml playbook will also do this, but only
+# after loading the playbooks into memory.  If these are out of date,
+# this can cause problems (e.g. looking for templates that no longer exist).
+/edx/bin/update configuration master
+
 ansible-playbook -i localhost, -c local vagrant-devstack.yml
 SCRIPT