License change from Apache to MIT, approved by all contributors

All the details here: #257

src/docs/index.html

@@ -101,7 +101,7 @@ <h2>The Team <small>It's handmade!</small></h2>
     <div class="page-header">
       <h2>The License <small>It's free!</small></h2>
     </div>
-    <p>Code licensed under the <a href="http://www.apache.org/licenses/LICENSE-2.0" target="_blank">Apache License v2.0</a>.<br>
+    <p>Code licensed under the <a href="https://opensource.org/licenses/MIT" target="_blank">MIT license</a>.<br>
     Documentation licensed under <a href="http://creativecommons.org/licenses/by/3.0/">CC BY 3.0</a>.</p>
   </div>
 </section>