Fix load order issues (again)

This is getting annoying.  Some day we'll have autoload and never have
to deal with this.

modules/exploits/windows/local/current_user_psexec.rb

@@ -12,14 +12,16 @@
 require 'msf/core'
 require 'rex'
 require 'msf/core/post/windows/services'
+require 'msf/core/post/common'
+require 'msf/core/post/file'
 
 class Metasploit3 < Msf::Exploit::Local
 	Rank = ExcellentRanking
 
+	include Post::Common
 	include Post::Windows::WindowsServices
 	include Exploit::EXE
 	include Post::File
-	include Post::Common
 
 	def initialize(info={})
 		super( update_info( info,