title: AWS Chalice using custom config path or custom app path?
body: <p>I am trying to use Chalice to fit into an pre-existing build folder structure, the python source file (app.py) is one level deeper than the vanilla Chalice project</p>
  
  <pre><code>├── .chalice
  │   └── config.json
  └── src
      ├── app.py
      ├── requirements.txt
      ├── requirements_test.txt
  </code></pre>
  
  <p>When I run <code>chalice local</code> in <code>src</code> folder it says it cannot find the config file:</p>
  
  <pre><code>Unable to load the project config file. Are you sure this is a chalice project?
  </code></pre>
  
  <p>When I run <code>chalice local</code> in the project folder, it says it cannot find the source file:</p>
  
  <pre><code>No module named 'app'
  </code></pre>
  
  <p>I had a look at the config file doesn't seem to have an option to specify where the source file is.</p>