Fix UTF-8 handling of log files

src/xsl/log2html.xsl

@@ -2,9 +2,7 @@
 
 <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
 
-  <xsl:output method='html' encoding="UTF-8"
-              doctype-public="-//W3C//DTD HTML 4.01//EN"
-              doctype-system="http://www.w3.org/TR/html4/strict.dtd" />
+  <xsl:output method='html' encoding="UTF-8" omit-xml-declaration="yes" />
 
   <xsl:template match="logfile">
     <p>

src/xsl/mark-errors.xsl

@@ -2,6 +2,8 @@
 
 <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
 
+  <xsl:output method='xml' encoding="UTF-8" />
+
   <xsl:template match="@*|node()">
     <xsl:copy>
       <xsl:apply-templates select="@*|node()"/>
@@ -23,5 +25,5 @@
       <xsl:apply-templates select="@*|node()"/>
     </line>
   </xsl:template>
-  
+
 </xsl:stylesheet>