Renames:
mysql_bind_param      -> mysql_stmt_bind_param
mysql_bind_result     -> mysql_stmt_bind_result
mysql_execute         -> mysql_stmt_execute
mysql_fetch           -> mysql_stmt_fetch
mysql_fetch_column    -> mysql_stmt_fetch_column
mysql_get_metadata    -> mysql_stmt_result_metadata
mysql_param_count     -> mysql_stmt_param_count
mysql_param_result    -> mysql_stmt_param_metadata
mysql_prepare         -> mysql_stmt_prepare
mysql_send_long_data  -> mysql_stmt_send_long_data

client_test.c cleaned up from memory leaks