[SCM] efficient 2D data-plotting library branch, master, updated. debian/2.2.1-4-7-g6f09ecd

[Picca Frédéric-Emma?==?UTF-8?Q?nuel]

The following commit has been merged in the master branch:
commit 9a6436b9fc9e8035d9aa731777ef511747d39087
Merge: ba084680c98b1004257390cf57d96aacfbe314ef 45d4eb19154463712ff21654116426b15bfee899
Author: Picca Frédéric-Emmanuel <picca at debian.org>
Date:   Sat May 25 13:06:43 2013 +0200

    Merge tag 'upstream/2.3.1'
    
    Upstream version 2.3.1


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efficient 2D data-plotting library