2014f

  Changes affecting data format

    A new file 'zone1970.tab' supersedes 'zone.tab' in the installed
    data.  The new file's extended format allows multiple country codes
    per zone.  The older file is still installed but is deprecated; its
    format is not changing and it will still be distributed for a while,
    but new applications should use the new file.

    The new file format simplifies maintenance of obscure locations.
    To test this, it adds coverage for the Crozet Islands and the
    Scattered Islands.  (Thanks to Tobias Conradi and Antoine Leca.)

    The file 'iso3166.tab' is planned to switch from ASCII to UTF-8.
    It is still ASCII now, but commentary about the switch has been
    added.  The new file 'zone1970.tab' already uses UTF-8.