Remove the /migrations every provision

- the DB gets confused if you want to change models but the old migrations are still there
- getting problems solved by nuking everything -- the :dhaynes: way!
- now in master

provisioning/playbook.yml

@@ -59,6 +59,9 @@
         src=templates/secret.py.j2
         dest={{ django['settings_path'] }}/secret.py
 
+    - name: refresh migrations
+       file: path=/vagrant/go/go/migrations state=absent
+
     - name: setup django database
       django_manage: >
         command={{ item }}