Merge branch 'belenos' into 'belenos'

Fix copyright file for grace

The copyright file of grace was taken from labplot, a completely different package. The only thing in common is the cephes library. I replaced the copyright file with the correct one from the Debian grace package.

See merge request !46

helpers/DATA/grace/COPYING.cephes

- 
  This software is derived from the Cephes Math Library. It is
  incorporated herein, and licensed in accordance with the Gnu
  General Public License, Version 2, by permission of the author. 

helpers/make-grace

@@ -17,12 +17,12 @@
 #    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
 #
 
-VERSION=1
+VERSION=2
 
 . ./config
 
 #Updated copyright file from obtained from
-# http://anonscm.debian.org/cgit/collab-maint/labplot.git/tree/debian/copyright?id=debian/1.6.0.2-3
+# http://ftp.de.debian.org/debian/pool/main/g/grace/grace_5.1.24-3.debian.tar.xz
 # http://anonscm.debian.org/cgit/collab-maint/labplot.git/tree/cephes/COPYING?id=debian/1.6.0.2-3
 
 cp $DATA/copyright debian/copyright