Added Steve Cleary, based on received permission.

[SVN r25450]

more/blanket-permission.txt

@@ -73,4 +73,7 @@ Housemarque Oy (Ilari Kuittinen ilari.kuittinen -at- housemarque.fi)
 Kevlin Henney (kevlin -at- curbralan.com) (See Boost list message of Wed, 15 Sep 2004 18:15:17 +0200)
 Jaap Suter (j.suter -at- student.utwente.nl) (See Boost list message of Thu, 16 Sep 2004 09:32:43 -0700)
 Samuel Krempp (krempp -at- crans.ens-cachan.fr) (See Boost list message of Mon, 27 Sep 2004 13:18:36 +0200)
+Stephen Cleary (scleary -at- jerviswebb.com) (See Boost list message of Tue, 28 Sep 2004 13:11:46 +0100)
+Steve Cleary (Variant of Stephen Cleary)
+