OSIS->Plain filter does not properly handle <divineName> wrapped outside the <w> element

Refer to https://crosswire.org/wiki/OSIS_Bibles#Marking_the_divine_name

Diatheke (that uses OSIS->Plain) normally renders the small-caps style assigned to text within the divineName element as ordinary uppercase.

However, when the w element for a Strong's lemma is nested within the divineName element, as in the first of the two ways shown, diatheke does not style the enclosed text.

The second way shown with the divineName nested within the w element works OK, and that's with or without the seg element workaround for OSIS validation.