title: Config TinyMCE, TinyMCErte by a external config JSON-File
body: <p>In MODX Revo, TinyMCErte I try to configure the PlugIn via the key tinymcerte.external_config. The config-File has to be valid JSON.
  Here is my block, it is ignored. 
  I want TinyMCE not to convert special characters like german umlaute (öäü) and of cource &amp; should stay &amp; and not <code>&amp;amp;</code></p>
  
  <pre><code>tinymce.init({
      forced_root_block : false,
      entity_encoding : "raw"
  })
  </code></pre>