d for grabbing the global info help (if it exists) from an
 arbitrary object. Can also append capabilities information if the object is
 a CapabilitiesHandler.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>object</code> - the object to grab global info from</dd><dd><code>addCapabilities</code> - true if capabilities information is to be added to
          the result</dd>
<dt><span class="strong">Returns:</span></dt><dd>the global help info or null if global info does not exist</dd></dl