[gnome-boxes] Add a missing tag to the AppData file

[Richard Hughes <rhughes src gnome org>]

commit bb1d247c2c8192b764863cbcd0ec00bb3e85207a
Author: Richard Hughes <richard hughsie com>
Date:   Mon Jan 25 15:45:10 2016 +0000

    Add a missing tag to the AppData file

 data/org.gnome.Boxes.appdata.xml.in |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/data/org.gnome.Boxes.appdata.xml.in b/data/org.gnome.Boxes.appdata.xml.in
index 7954150..d97e586 100644
--- a/data/org.gnome.Boxes.appdata.xml.in
+++ b/data/org.gnome.Boxes.appdata.xml.in
@@ -51,4 +51,5 @@
   <url type="bugtracker">https://bugzilla.gnome.org/enter_bug.cgi?product=gnome-boxes</url>
   <url type="donation">http://www.gnome.org/friends/</url>
   <url type="help">https://help.gnome.org/users/gnome-boxes/stable/</url>
+  <translation type="gettext">gnome-boxes</translation>
 </component>