[Owncloud] Fix ampache

[peter at chubb.wattle.id.au]

Bugs.owncloud.org appears to be down again.

iAmpache refuses to connect to owncloud.

The android client works with this patch:

diff --git a/apps/media/lib_collection.php b/apps/media/lib_collection.php
index 358b80d..11c9a0a 100644
--- a/apps/media/lib_collection.php
+++ b/apps/media/lib_collection.php
@@ -284,7 +284,7 @@ class OC_MEDIA_COLLECTION{
        }
        
        public static function getSongCount(){
-               $query=OC\DB::prepare("SELECT DISTINCT COUNT(song_path) AS count FROM *PREFIX*media_songs");
+               $query=OCP\DB::prepare("SELECT DISTINCT COUNT(song_path) AS count FROM *PREFIX*media_songs");
                $result=$query->execute()->fetchAll();
                return $result[0]['count'];
        }