[gimp/gimp-2-8] Add an AppData file for GIMP

[Michael Natterer <mitch src gnome org>]

commit 31601b3a6b6fc1fd87da9f705fa771f7d4764fa7
Author: Richard Hughes <richard hughsie com>
Date:   Thu Sep 5 15:46:07 2013 +0100

    Add an AppData file for GIMP
    
    (cherry picked from commit 5e37536d77310673dac9a720cef761c9372049f0)

 desktop/Makefile.am      |    3 +++
 desktop/gimp.appdata.xml |   28 ++++++++++++++++++++++++++++
 2 files changed, 31 insertions(+), 0 deletions(-)
---
diff --git a/desktop/Makefile.am b/desktop/Makefile.am
index fca05de..dc7985b 100644
--- a/desktop/Makefile.am
+++ b/desktop/Makefile.am
@@ -35,8 +35,11 @@ install-data-hook:
 
 endif
 
+appdatadir = $(datadir)/appdata
+appdata_files = gimp.appdata.xml
 
 EXTRA_DIST = \
+       $(appdata_files)        \
        gimp.desktop.in.in      \
        16x16/gimp.png          \
        22x22/gimp.png          \
diff --git a/desktop/gimp.appdata.xml b/desktop/gimp.appdata.xml
new file mode 100644
index 0000000..0286af2
--- /dev/null
+++ b/desktop/gimp.appdata.xml
@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<application>
+<id type="desktop">gimp.desktop</id>
+<licence>CC0</licence>
+<description>
+<p>
+GIMP is an acronym for GNU Image Manipulation Program. It is a freely distributed
+program for such tasks as photo retouching, image composition and image authoring.
+</p>
+<p>
+It has many capabilities. It can be used as a simple paint program, an expert
+quality photo retouching program, an online batch processing system, a mass
+production image renderer, an image format converter, etc.
+</p>
+<p>
+GIMP is expandable and extensible. It is designed to be augmented with plug-ins
+and extensions to do just about anything. The advanced scripting interface allows
+everything from the simplest task to the most complex image manipulation
+procedures to be easily scripted.
+GIMP is also available for Microsoft Windows and OS X.
+</p>
+</description>
+<url type="homepage">http://www.gimp.org/</url>
+<screenshots>
+<screenshot type="default">http://www.gimp.org/screenshots/linux_mixer.jpg</screenshot>
+</screenshots>
+<updatecontact>gimp-developer-list_at_gnome.org</updatecontact>
+</application>