fix for bug #7924.

added export symbols mysql_server_init and 
mysql_server_end to allow client to connect to external and embedded
server using the same code (required for Connector/OO.org). (Backport from 5.0 - cs. 1.35)

libmysql/libmysql.def

@@ -147,4 +147,6 @@ EXPORTS
 	mysql_slave_query
 	mysql_embedded
 	mysql_set_character_set
+	mysql_server_init
+	mysql_server_end
 	get_defaults_files