[MySQL][Spider]Spider storage engine 0.18 released

I'm pleased to announce the release of Spider storage engine version 0.18.(RC)
http://spiderformysql.com/

The main changes in this version are following.
- Add table parameter "use_pushdown_udf".
- Add server parameter "spider_use_pushdown_udf".
  "use_pushdown_udf" and "spider_use_pushdown_udf" are used for sending UDF string to remote server if engine_condition_pushdown is used.

From this version, you can use '\r' and '\n' like a space between table parameter name and table parameter value.
Thanks to Akihiro for report.

Please see "99_change_logs.txt" in the download documents for checking other changes.

Enjoy!