Log Message:
Update to version 1.62.

Changes since last packaged version (1.61):
1.62pre
- security callback interface contributed by Shane Corgatelli
- check libxslt version
- added XML::LibXML-like API to retrieve libxslt version
- added output_as_bytes() and output_as_chars()
- added regression tests for output_as_* to 11utf8.t
- output_as_string documentation fixed to match reality
- make 06entities.t to pass with older libxml2/libxslt
- POD uses items instead of headings
- fixed media_type and output_encoding for imported stylesheets [rt.cpan.org #23440]