Item11843: and Item11013: GenPDFAddOn now honors {Site}{CharSet}, and adds pdfcharset and _CHARSET to allow user to over-ride - patch by JozefMojzis

git-svn-id: http://svn.foswiki.org/trunk@16852 0b4bb1d4-4e5a-0410-9cc4-b2b747904278