[glom] appdata: Update the licence tags for the latest specification.

[Murray Cumming <murrayc src gnome org>]

commit a644c9cb554039b82984710d357c5dfb69848510
Author: Murray Cumming <murrayc murrayc com>
Date:   Mon Oct 13 20:25:47 2014 +0200

    appdata: Update the licence tags for the latest specification.

 glom.appdata.xml.in |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/glom.appdata.xml.in b/glom.appdata.xml.in
index b6da151..f3c963f 100644
--- a/glom.appdata.xml.in
+++ b/glom.appdata.xml.in
@@ -2,7 +2,8 @@
 <!-- Copyright 2013 Murray Cumming <murrayc murrayc com> -->
 <application>
   <id type="desktop">glom.desktop</id>
-  <licence>CC0</licence>
+  <metadata_license>CC0</metadata_license>
+  <project_license>GPL-3.0+</project_license>
   <description>
     <p>
       With Glom you can design database systems - the database and the user interface.