title: How to configure tslint to check no-unused-variable in Angular2
body: <p>Do you know how to configure tslint to check no-unused-variable and also unsed imports in angular2, I have already added such two lines in my tslint file</p>
  
  <pre><code>"no-unused-expression": true,
  "no-unused-variable": true,
  </code></pre>
  
  <p>But it's propably not working, any ideas?</p>