[Merge] plplot 5.6.1-11ubuntu1

[Lionel Porcheron]

Please merge plplot 5.6.1-11ubuntu1 from Debian unstable.

Changelog:
 plplot (5.6.1-11ubuntu1) gutsy; urgency=low
 .
   * Merge from Debian unstable. Remaining Ubuntu changes:
      - Do not link the python extensions with the python library.
   * Modify Maintainer value to match Debian-Maintainer-Field Spec
 .
 plplot (5.6.1-11) unstable; urgency=low
 .
   * QA upload.
   * debian/patches/51_remove-no-force-mem.dpatch: Remove `-fno-force-mem',
     which is a no-op with GCC 4.1+, and unsupported with GCC 4.3.
     Closes: #415278.
   * debian/watch: Update upstream URL.

[Lionel Porcheron (lionel.porcheron)]

Debdiff from Debian unstable