
When we'll switch to HTML5, use another tag (meta ?) inside <head> so
that the token can be used earlier in JavaScript.

for instance:

  <!DOCTYPE html>
  <html>
  <head>
      <meta name="ezform_token_js" id="ezform_token_js"
          title="7bbf9619d0475cd21845aac8e9b5ab8c"
          content="7bbf9619d0475cd21845aac8e9b5ab8c" />
      <!-- ... -->
