[libchamplain] Add people who contributed patches into AUTHORS

[Jiří Techet <jiritechet src gnome org>]

commit db5c56c46a05581087de833398365fa55e21d5c5
Author: JiÅ?í Techet <techet gmail com>
Date:   Sun Mar 27 18:10:29 2011 +0200

    Add people who contributed patches into AUTHORS
    
    Thanks!

 AUTHORS |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/AUTHORS b/AUTHORS
index 9ff8814..7f75039 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -37,3 +37,7 @@ Rob Bradford <rob linux intel com>
 Tomaž Vajngerl <quikee gmail com>
 Å?ukasz JernaÅ? <deejay1 srem org>
 Russell Strong <russell strong id au>
+Yaakov Selkowitz <yselkowitz users sourceforge net>
+Nirbheek Chauhan <nirbheek gentoo org>
+William Jon McCann <jmccann redhat com>
+