Revert "Revert "Revert "MySQL 5.5.30"""

This reverts commit e3016610480d14dacb3758bc2ca3e2dabc8e4ce1.
Revert "Revert "Revert "Revert "MySQL 5.5.30""""

This reverts commit d22cef55b548c358bb849ab249d56f8db5e8753b.