[SCM] efficient 2D data-plotting library annotated tag, upstream/2.3.0, created. upstream/2.3.0

[Picca Frédéric-Emma?==?UTF-8?Q?nuel]

The annotated tag, upstream/2.3.0 has been created
        at  76de453047a85ac38a18c6159b1d1055014c0350 (tag)
   tagging  9baeafef2627f39b41d5038faa41878aa1a4a26b (commit)
  replaces  upstream/2.2.1
 tagged by  Picca Frédéric-Emmanuel
        on  Fri May 24 09:12:55 2013 +0200

- Shortlog ------------------------------------------------------------
Upstream version 2.3.0

Picca Frédéric-Emmanuel (2):
      Imported Upstream version 2.3.0
      Imported Upstream version 2.3.0

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efficient 2D data-plotting library