Fix Nginx provision fatal

```
        Comment:   Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/salt/utils/templates.py", line 63, in render_tmpl
    output = render_str(tmplstr, context, tmplpath)
  File "/usr/lib/python2.7/dist-packages/salt/utils/templates.py", line 116, in render_jinja_tmpl
    output = jinja_env.from_string(tmplstr).render(**context)
  File "/usr/lib/python2.7/dist-packages/jinja2/environment.py", line 894, in render
    return self.environment.handle_exception(exc_info, True)
  File "<template>", line 58, in top-level template code
UndefinedError: 'dict object' has no attribute 'project'
```

Introduced by #52