Fix metacafe.com code not working due to gdaKey again (fixes issue #185)

youtube-dl

@@ -1039,15 +1039,15 @@ class MetacafeIE(InfoExtractor):
 			return
 		mediaURL = urllib.unquote(mobj.group(1))
 
-		#mobj = re.search(r'(?m)&gdaKey=(.*?)&', webpage)
-		#if mobj is None:
-		#	self._downloader.trouble(u'ERROR: unable to extract gdaKey')
-		#	return
-		#gdaKey = mobj.group(1)
-		#
-		#video_url = '%s?__gda__=%s' % (mediaURL, gdaKey)
-
+		# Extract gdaKey if available
+		mobj = re.search(r'(?m)&gdaKey=(.*?)&', webpage)
+		if mobj is None:
 			video_url = mediaURL
+			#self._downloader.trouble(u'ERROR: unable to extract gdaKey')
+			#return
+		else:
+			gdaKey = mobj.group(1)
+			video_url = '%s?__gda__=%s' % (mediaURL, gdaKey)
 
 		mobj = re.search(r'(?im)<title>(.*) - Video</title>', webpage)
 		if mobj is None: