Change to AverageRanking

Just to play with the firing order for Browser Autopwn, this one
should fire as late as possible.

Author: wchen-r7

modules/exploits/windows/browser/synactis_connecttosynactis_bof.rb

@@ -22,7 +22,7 @@ class Metasploit3 < Msf::Exploit::Remote
 		:classid    => "{C80CAF1F-C58E-11D5-A093-006097ED77E6}",
 		:method     => "ConnectToSynactis",
 		:os_name    => OperatingSystems::WINDOWS,
-		:rank       => NormalRanking
+		:rank       => AverageRanking
 	})
 
 	def initialize(info={})