Add getUploadRatio() function to retrieve share ratio on current torr…

…ent object

Usage example:

// Getting a specific torrent from the download queue
$torrent = $transmission->get(1);

// Getting share ratio of the selected torrent
$torrent->getUploadRatio();  // Will return 0.5033 for example; If the return value is 1, it will say that the torrent is seeded 1 time

lib/Transmission/Model/Torrent.php

@@ -73,6 +73,11 @@ class Torrent extends AbstractModel
      */
     protected $trackers = array();
 
+    /**
+     * @var double
+     */
+    protected $uploadRatio;
+
     /**
      * @param integer $id
      */
@@ -287,6 +292,22 @@ public function getTrackers()
         return $this->trackers;
     }
 
+    /**
+     * @param double $ratio
+     */
+    public function setUploadRatio($ratio)
+    {
+        $this->uploadRatio = (double) $ratio;
+    }
+
+    /**
+     * @return double
+     */
+    public function getUploadRatio()
+    {
+        return $this->uploadRatio;
+    }
+
     /**
      * @return boolean
      */
@@ -337,6 +358,7 @@ public static function getMapping()
             'files' => 'files',
             'peers' => 'peers',
             'trackers' => 'trackers',
+            'uploadRatio' => 'uploadRatio',
             'hashString' => 'hash'
         );
     }