Log Message:
Update to 3.44

Upstream changes:
version 3.44
# minor maintenance release
added: XML::Twig::Elt new method now acccepts literal content, eg
       my $e= XML::Twig::Elt->new( \ 
'<div><p>foo</p><p>bar</p></div>');
fixed: merge had some problems dealing with embedded comments
improved: more tests

version 3.43
# minor maintenance release
improved: docs for parse, see RT #78877
       https://rt.cpan.org/Ticket/Display.html?id=78877
fixed: xml_pp -i now preserves the permissions of the
       original file, see RT #81165
       https://rt.cpan.org/Ticket/Display.html?id=81165
       reported by Alberto Simoes
fixed: RT #80503 Newlines in attribute values
       https://rt.cpan.org/Ticket/Display.html?id=80503
       reported (and explained) by Ambrus Zsban: \r, \n
       and \n explicitely set in attribute values should
       be escaped (with &#x<nb>;) when output