update copyright year, and add credits for Davey Shafik/info on where Phar came from

ext/phar/phar.c

@@ -2,7 +2,7 @@
   +----------------------------------------------------------------------+
   | phar php single-file executable PHP extension                        |
   +----------------------------------------------------------------------+
-  | Copyright (c) 2005 The PHP Group                                     |
+  | Copyright (c) 2005-2006 The PHP Group                                |
   +----------------------------------------------------------------------+
   | This source file is subject to version 3.01 of the PHP license,      |
   | that is bundled with this package in the file LICENSE, and is        |
@@ -1443,6 +1443,7 @@ PHP_MINFO_FUNCTION(phar)
 #else
 		"disabled");
 #endif
+	php_info_print_table_row(1, "Phar based on pear/PHP_Archive, original concept by Davey Shafik and fully realized by Gregory Beaver");
 	php_info_print_table_end();
 }
 /* }}} */