Refactor 5: Use @select for xsl:attribute and remove use of #none# for empty results
Refactor 5: Use @select for xsl:attribute and remove use of #none# for empty results

infotexture/dita-ot,dita-ot/dita-ot,dita-ot/dita-ot,robander/dita-ot,infotexture/dita-ot,infotexture/dita-ot,dita-ot/dita-ot,robander/dita-ot,shaneataylor/dita-ot,drmacro/dita-ot,shaneataylor/dita-ot,drmacro/dita-ot,dita-ot/dita-ot,shaneataylor/dita-ot,robander/dita-ot,robander/dita-ot,drmacro/dita-ot,dita-ot/dita-ot,shaneataylor/dita-ot,infotexture/dita-ot,robander/dita-ot,infotexture/dita-ot,drmacro/dita-ot,shaneataylor/dita-ot,drmacro/dita-ot