[gnome-weather] Update appdata to the new format

[Giovanni Campagna <gcampagna src gnome org>]

commit 454e6cc9d3de5a8af567d92a7a88f1afb74a51d8
Author: Giovanni Campagna <gcampagna src gnome org>
Date:   Wed May 7 00:56:02 2014 +0200

    Update appdata to the new format
    
    Replace <licence> with <metadata_license> and add <project_license>.
    
    Note that the license of the project is GPLv2+. CC-BY and CC-BY-SA
    are listed because they are the license of the backgrounds.
    There is some BSD code (util.js), and some MIT code (package.js, params.js),
    but that's irrelevant: if you get that code from gnome-weather,
    it's all GPLv2+, because it's one application / distribution /
    bundle / whatever-thing-you-"convey".

 data/org.gnome.Weather.Application.appdata.xml.in |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/data/org.gnome.Weather.Application.appdata.xml.in 
b/data/org.gnome.Weather.Application.appdata.xml.in
index 33a4378..be1ceba 100644
--- a/data/org.gnome.Weather.Application.appdata.xml.in
+++ b/data/org.gnome.Weather.Application.appdata.xml.in
@@ -1,7 +1,8 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <application>
   <id type="desktop">org.gnome.Weather.Application.desktop</id>
-  <licence>CC0</licence>
+  <metadata_license>CC0-1.0</metadata_license>
+  <project_license>GPL-2.0+ and CC-BY-2.0 and CC-BY-SA-2.0</project_license>
   <description>
     <_p>
       A small application that allows you to monitor the current weather