[SCM] efficient 2D data-plotting library annotated tag, upstream/2.1.5, created. upstream/2.1.5

[Picca Frédéric-Emma?==?UTF-8?Q?nuel]

The annotated tag, upstream/2.1.5 has been created
        at  cef6b53a3aca6600b53fa1f667d9f6bc9c1bc881 (tag)
   tagging  730d695936e10066460b3575178594a1c7109092 (commit)
  replaces  upstream/2.1.4
 tagged by  Picca Frédéric-Emmanuel
        on  Sun Sep 11 21:01:48 2011 +0200

- Shortlog ------------------------------------------------------------
Upstream version 2.1.5

Picca Frédéric-Emmanuel (1):
      Imported Upstream version 2.1.5

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efficient 2D data-plotting library