Unknown macro: {scrollbar}
Support the ability to specify custom validation code in the data dictionary. For example,
<message>
<validation language="jruby">
... scripted code ...
<validation>
<field name="Account">
<validation language="jython">...
... scripted validation ...
</validation>
</field>
</message>
This should support data dictionary merging so that validation could be layered on top of an existing data dictionary.