Fix missing opf namespaces in spine check
diff --git a/xslt/epub2i5.xsl b/xslt/epub2i5.xsl
index 32243e6..4287b9c 100644
--- a/xslt/epub2i5.xsl
+++ b/xslt/epub2i5.xsl
@@ -404,7 +404,7 @@
<body>
<!-- Call the template for each link in the TOC
<xsl:apply-templates select="//xhtml:ol[@class='toc']/xhtml:li/xhtml:a" mode="collect"/> -->
- <xsl:apply-templates select="//opf:package/opf:manifest/opf:item[exists(//spine/itemref/@idref=@id) and matches(@href, '\.x?html?$') and not(matches(@href, '(cover|toc|copyright|feedback|inhalt|nav|titlepage).*'))]" mode="collect"/>
+ <xsl:apply-templates select="//opf:package/opf:manifest/opf:item[exists(//opf:spine/opf:itemref/@idref=@id) and matches(@href, '\.x?html?$') and not(matches(@href, '(cover|toc|copyright|feedback|inhalt|nav|titlepage).*'))]" mode="collect"/>
</body>
</text>
</idsText>