[gnome-tweak-tool] Update the AppData file to 0.7+ and add some missing data

[Richard Hughes <rhughes src gnome org>]

commit abfc4005d25b4e542a6b58c6eb2d42139984ce0c
Author: Richard Hughes <richard hughsie com>
Date:   Fri Jan 22 17:17:36 2016 +0000

    Update the AppData file to 0.7+ and add some missing data

 data/gnome-tweak-tool.appdata.xml.in |   36 ++++++++++++++++++++-------------
 1 files changed, 22 insertions(+), 14 deletions(-)
---
diff --git a/data/gnome-tweak-tool.appdata.xml.in b/data/gnome-tweak-tool.appdata.xml.in
index 00aab4d..0180aa9 100644
--- a/data/gnome-tweak-tool.appdata.xml.in
+++ b/data/gnome-tweak-tool.appdata.xml.in
@@ -1,19 +1,27 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<application>
- <id type="desktop">gnome-tweak-tool.desktop</id>
- <licence>CC0</licence>
- <description>
-   <_p>
+<component type="desktop">
+  <id>gnome-tweak-tool.desktop</id>
+  <metadata_license>CC0-1.0</metadata_license>
+  <project_license>GPL-3.0</project_license>
+  <_name>GNOME Tweak Tool</_name>
+  <_summary>Tweak advanced GNOME 3 settings</_summary>
+  <description>
+    <_p>
      GNOME Tweak Tool allows adjusting advanced GNOME options.
-  </_p>
-  <_p>
+    </_p>
+    <_p>
     It can install and manage themes and extensions, change power settings,
     manage startup applications, and enable desktop icons among other settings.
   </_p>
- </description>
- <screenshots>
-    <screenshot 
type="default">https://wiki.gnome.org/GnomeTweakTool?action=AttachFile&amp;do=get&amp;target=UI.png</screenshot>
- </screenshots>
- <url type="homepage">https://wiki.gnome.org/GnomeTweakTool</url>
- <updatecontact>john stowers gmail com</updatecontact>
-</application>
+  </description>
+  <project_group>GNOME</project_group>
+  <screenshots>
+    <screenshot type="default">
+      <image>https://wiki.gnome.org/GnomeTweakTool?action=AttachFile&amp;do=get&amp;target=UI.png</image>
+    </screenshot>
+  </screenshots>
+  <url type="homepage">https://wiki.gnome.org/GnomeTweakTool</url>
+  <update_contact>john stowers gmail com</update_contact>
+  <url type="bugtracker">https://bugzilla.gnome.org/enter_bug.cgi?product=gnome-tweak-tool</url>
+  <url type="donation">http://www.gnome.org/friends/</url>
+</component>