wsrep patch for MySQL

Release Notes: This release fixed many bugs related to foreign key handling, tables without primary keys, and a number of other serious problems.

Release Notes: This is a major bugfix and maintenance release. Upgrading is recommended. It fixed foreign keys support (multiple issues), a possible crash in tables without a primary key but with a unique secondary key, a crash with DDL in multi-statement transactions, a blocking problem in RSU DDL, a failure of MySQL slaves to start if no wsrep provider was loaded. It added automatic GTID recovery after a crash by mysqld_safe, xtrabackup SST support, and an update to MySQL 5.5.28.

Release Notes: This release is compatible with MySQL 5.1.62 (a security update) and adds support for wsrep_sst_method=skip and a way to provide a list of peers to mysqld_safe.

Release Notes: This release fixes parallel applying with foreign keys and varchar keys certification. It also adds support for MySQL replication filters, skipping state transfer (wsrep_sst_method=skip), and a way to specify a list of potential peers for the mysqld_safe script.

Release Notes: This version is for MySQL 5.5.23. It fixed problems where ALTER TABLE RENAME and row deletion could conflict on slave, the slave could fail if the max_allowed_packet size was exceeded, the clustered index was not included in the key set, and locking sessions could deadlock multi-master. New experimental features were added: runtime consistency check support, hard crash GTID recovery, MyISAM storage engine support (incomplete), and Solaris 11 x86 build support.