[gnome-characters] SearchProvider: fix unbalanced hold()

[Giovanni Campagna <gcampagna src gnome org>]

commit 032721b5e83829b2c9e378ea391365149bfd6189
Author: Giovanni Campagna <scampa giovanni gmail com>
Date:   Tue Mar 3 02:00:34 2015 -0800

    SearchProvider: fix unbalanced hold()
    
    Each query call holds the app alive until the query done, so make
    sure that is matched with a release(), otherwise the app never
    dies.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=745508

 src/searchProvider.js |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/src/searchProvider.js b/src/searchProvider.js
index 5a40c30..90346e7 100644
--- a/src/searchProvider.js
+++ b/src/searchProvider.js
@@ -65,6 +65,8 @@ const SearchProvider = new Lang.Class({
                     log("Failed to search by keywords: " + e);
                 }
                 invocation.return_value(new GLib.Variant('(as)', [characters]));
+
+                this._app.release();
             }));
     },