Changing the default of libmysqlclient : it's now NO reconnection.

All our programs which use mysql_real_connect() and mysql_connect() are updated accordingly, though I have deliberately
made mysqlimport not reconnect anymore (already true for mysqldump >= 4.1.8).
All Connector devs have been warned about the change I'm doing here - which was agreed with Monty,
and fixes BUG#2555.

client/mysqltest.c

@@ -1627,6 +1627,7 @@ int safe_connect(MYSQL* con, const char* host, const char* user,
     }
     sleep(CON_RETRY_SLEEP);
   }
+  con->reconnect= 1; /* TODO: change this to 0 in future versions */
   return con_error;
 }