[Fatal Error] :-1:-1: Premature end of file.

This usually indicates malformed XML or, more likely in your
case, a malformed XPath expression. You are probably missing
a quote or a parenthesis somewhere.

My second Question is that i don't want to copy that stylesheet for each
heading (h1, h2, ...) and a general stylesheet for the headings would be
nice.

Try
 <xsl:template match="h1|h2|h3|h4|h5">
   ...
		<fo:block xsl:use-attribute-sets="name()">
   ...