Shell File Manager

Thanks to Info-ZIP for info on the DOS-time/date conversion code,
and some other general information gathered from their sources.

Thanks to these people for suggestions, testing, and bug reports:

Alexander Galanin <[email protected]>
Andrew Brampton <[email protected]>
Heiko Hund <[email protected]>
Joel Ebrahimi <[email protected]>
Jono Spiro <[email protected]>
Mikhail Gusarov <[email protected]>.
Oliver Kaiser <[email protected]>
Patrick Spendrin <[email protected]>
Pierre Joye <[email protected]>
Rick Carback <[email protected]>
Roberto Tirabassi <[email protected]>
Simon Talbot <[email protected]>
Stephen Bryant <[email protected]>
Tarmo Pikaro <[email protected]>
Timo Warns <[email protected]>