The 'dtenable' does not appear to take user-provided content that
requires language normalization. In general getRawVal should be used,
or if it's user input that needs normalization, use getText(). Perhaps
one day we'll alias or deprecate getVal (which is currently an odd
mid-way hybrid, most closely to getText; originally created for
EditPage.php textareas).
Change-Id: I8364c84f8c4f700da6e208df2e87c29bf254d685
