in File, if a revision lower than the oldest is given, show the oldest. If a higher than the youngest, show youngest. This make viewing specific revisions slightly more intuitive. Fixes #589.
in File, if a revision lower than the oldest is given, show the oldest. If a
higher than the youngest, show youngest. This make viewing specific revisions
slightly more intuitive. Fixes #589.

pkdevbox/trac,pkdevbox/trac,pkdevbox/trac,pkdevbox/trac