title: Spec files are being linted after I included exclude in angular-cli.json
body: <p>I have an angular 4 app and manually created 2 .spec files for a class. When I run <code>nglint</code>, it will lint the 2 spec files. The spec files that were included when I generated a component with the angular-cli are not being linted however (which is what I want)</p>
  
  <p>I have added the following property to my .angular-cli.json file, but it still lints the files:</p>
  
  <pre><code>"lint": [
      {
        "project": "src/tsconfig.app.json",
        "exclude": "**/**/*.spec.ts"
      },
      {
        "project": "src/tsconfig.spec.json",
        "exclude": "**/**/*.spec.ts"
      },
      {
        "project": "e2e/tsconfig.e2e.json",
        "exclude": "**/**/*.spec.ts"
      }
  ],
  </code></pre>
  
  <p>My spec files are located within /src/app/folder/</p>