Fix compilation error
Bug #443, http://bugs.skysql.com/show_bug.cgi?id=443
monitors used mysql_ping without MYSQL_OPT_READ_TIMEOUT which caused read to block. Fixed in mysql and galera monitor.
Added log writing per each status change of each server and repeatedly if server is not running.

Removed SERVER_IS_JOINED checks from rwsplit router.
Merge pull request #5 from skysql/MAX-122

Max 122