tzdb Release 2013g

Changelog (from NEWS)

Changes affecting current and near-future timestamps

    Morocco now observes DST from the last Sunday in March to the last
    Sunday in October, not April to September respectively.  (Thanks
    to Steffen Thorsen.)

  Changes affecting 'zic'

    'zic' now runs on platforms that lack both hard links and symlinks.
    (Thanks to Theo Veenker for reporting the problem, for MinGW.)
    Also, fix some bugs on platforms that lack hard links but have symlinks.

    'zic -v' again warns that Asia/Tehran has no POSIX environment variable
    to predict the far future, fixing a bug introduced in 2013e.

  Changes affecting the build procedure

    The 'leapseconds' file is again put into the tzdata tarball.
    Also, 'leapseconds.awk', so tzdata is self-contained.  (Thanks to
    Matt Burgess and Ian Abbott.)  The timestamps of these and other
    dependent files in tarballs are adjusted more consistently.

  Changes affecting documentation and commentary

    The README file is now part of the data tarball as well as the code.
    It now states that files are public domain unless otherwise specified.
    (Thanks to Andrew Main (Zefram) for asking for clarifications.)
    Its details about the 1989 release moved to a place of honor near
    the end of NEWS.