* Added alternative xslt functionality with xsltproc
* Added function to automatically detect xslt implementation.
(cherry picked from commit fd4deea51f5c736ca7b39e618395eb5d3a73ae8c)

Signed-off-by: Marc Grimme <grimme@atix.de>
New version for comoonics-ec-py (+xsltproc in com-ec) 5.1-2