 transclude function made available to
directives; if given, it will be passed through to the link functions of
directives found in <code>element</code> during compilation.</li>
<li><code>transcludeControllers</code> - an object hash with keys that map controller names
to controller instances; if given, it will make the controllers
available to directives.</li>
<li><code>futureParentElement</code> - defines the parent to which the <code>cloneAttachFn</code> will add
the cloned elements; only needed for tran