I have to use a separate label component for a textarea because I want the label
above the textarea and not beside it.  I've set the "required" attribute on the
textarea but when the textarea gets validated, if it's blank the textarea item
id is used in the message group and not the separate label text.

Steps to reproduce:

1. Add a textfield, type a label, and set to required.
2. Add a textarea and set to required.
3. add a label, set the "for" to the textarea.
4. Add a message group.
5. Run the web app and push the button.
6. Notice the message group shows the label of the textfield but the item id of
the textarea.

This is really messy when you have a textarea buried inside multiple
containments in a form and you get something like this:

form1:center_container:page_border:fixed_contentarea:fixed_contextbox:bottomPanel:txtSummary:
Validation Error: Value is required.

Please see the attached snapshot.