title: Convert String to JSONArray (not JsonArray from gson)
body: <p>how to properly convert this String to a jsonArray?</p>
  
  <pre><code>{
      "myArray": [
      {   "id": 1,
          "att1": 14.2,
          "att2": false },
      {   "id": 2,
          "att1": 13.2,
          "att2": false },
      {   "id": 3,
          "att1": 13,
          "att2": false }
    ]}
  </code></pre>
  
  <p>An <code>JSONArray jArray = new JSONArray(STRING_FROM_ABOVE);</code> results in <code>jArray.length = 1</code>
  Its my first time to get in touch with json :)</p>