Improved DESCRIPTION generation for octave-api

* Use version number from C++ api
* Use current date for release date
* Shortened package description

Author: oheim

client-api/Octave/DESCRIPTION

@@ -1,23 +1,18 @@
 Name: vibes
-Version: 0.2.0
-Date: 2015-11-12
+Version: %VERSION%
+Date: %DATE%
 Author: Oliver Heimlich <[email protected]>
 Maintainer: ENSTA Bretagne Robotics
 Title: Interface to VIBes, Visualizer for Intervals and Boxes
-Description: VIBes is a visualization system that aims at providing people
- working with interval methods a way to display results (boxes, pavings),
- without worrying with GUI programming. It provides drawing functions
- accessible from a lot of programming languages, without complex installation
- and library dependencies. The main design goal of VIBes is to be
- cross-platform, available from different programming languages, simple to
- set-up, easy to port to a new language.
+Description: The VIBes API allows one to easily display results (boxes, pavings)
+ from interval methods.
 
  VIBes consists in two parts: (1) the VIBes application that features viewing,
  annotating and exporting figures, and (2) the VIBes API that enables your
  program to communicate with the viewer in order to draw figures.
 
  This package integrates the VIBes API into Octave. The VIBes application
  is required for operation and must be installed seperately. Data types from
- third-party interval arithmetic libraries for Octave are also supportd.
+ third-party interval arithmetic libraries for Octave are also supported.
 Depends: octave (>= 4.0.0)
 License: GPLv3+

client-api/Octave/Makefile

@@ -20,8 +20,8 @@ SHELL = /bin/sh
 
 CUT ?= cut
 PACKAGE = $(shell grep "^Name: " DESCRIPTION | $(CUT) -f2 -d" ")
-VERSION = $(shell grep "^Version: " DESCRIPTION | $(CUT) -f2 -d" ")
-DATE = $(shell grep "^Date: " DESCRIPTION | $(CUT) -f2 -d" ")
+VERSION = $(shell grep "^/// \\\\version " ../C++/src/vibes.h | $(CUT) -f3 -d" " | sed -e "s/[^0-9.]//g")
+DATE = $(shell date "+%Y-%m-%d")
 
 ##
 ## Release Process
@@ -44,6 +44,7 @@ $(RELEASE_TARBALL): ../../.git/index
 		(cd "$(PACKAGE)-bundle" && tar xf -)
 	@(cd ../C++/; git archive --format=tar --prefix="$(PACKAGE)-$(VERSION)/" HEAD src) | \
 		(cd "$(PACKAGE)-bundle" && tar xf -)
+	@sed -e "s/%VERSION%/$(VERSION)/" -e "s/%DATE%/$(DATE)/" -i "$(PACKAGE)-bundle/$(PACKAGE)-$(VERSION)/DESCRIPTION"
 	@(cd "$(PACKAGE)-bundle" && tar czf "../$@" "$(PACKAGE)-$(VERSION)")
 
 ##