Fix some invalid Unicode characters

configs/samples/minivm.conf.sample contains invalid UTF-8, but that
appears to be intentional.

Change-Id: I7b1e0d332f3380fd0425962a3c9c55f9b200c8cc

CREDITS

@@ -22,7 +22,7 @@
 	* John Todd, TalkPlus, Inc.  and JR Richardson, Ntegrated Solutions. 
 		for funding the development of SIP Session Timers support.
 
-	* Omnitor AB, Gunnar Hellstr�m, for funding work with videocaps, 
+	* Omnitor AB, Gunnar Hellström, for funding work with videocaps, 
 		T.140 RED, originate with video/text and many more 
 		contributions.
 
@@ -253,7 +253,7 @@
 		cdr_tds rewrite, countless other improvements, fixes, and good
 		ideas. sean(AT)malleable.com
 
-	* Jan Kal�b - Calendaring support for Exchange Server 2007+ via 
+	* Jan Kaláb - Calendaring support for Exchange Server 2007+ via 
 		Exchange Web Services.
 
 	* University of Oslo (uio.no), Norway - SIP Max-Forwards setting 

contrib/scripts/managerproxy.pl

@@ -5,11 +5,11 @@
 #  Copyright (c) 2004 David C. Troy <dave@popvox.com>
 #
 #  This code is based on Flash Operator Panel 'op_server.pl'
-#  by Nicolas Gudino
-#  Copyright (C) 2004.
+#  by Nicolás Gudiño
+#  Copyright (C) 2004.
 #
 #  David C. Troy <dave@popvox.com>
-#  Nicolas Gudino <nicolas@house.com.ar>
+#  Nicolás Gudiño <nicolas@house.com.ar>
 #
 #  This program is free software, distributed under the terms of
 #  the GNU General Public License.