New features and changes since tin-1.8.1

New features
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. slrn style verbatim marks
. UTF-8 descriptions (RFC 3977)
. sort by date of last posted article
. writes out newsrc if getting SIGUSR2

Changes
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. Cancel-Locks can be enabled via configure switch
. url_handler.pl as DEFAULT_URL_HANDLER
. mime_forward is forced on multipart articles

Retired Features
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. VMS support
. libinn support (was broken for ages)
