New Features

• New connection argument :init_command sets a query string to run at connect/reconnect.

Bugfixes

• Check that dir_config returns at least one valid directory at compile time.

Changes

• Enforce connection retry time limits across interrupts (e.g. by signals, etc.)
• Prevent MySQL from calling shutdown() on shared sockets.
• MariaDB 5.5 and 10.0 added to the test suite. No changes were required to support MariaDB, but we're actively testing for compatibility now.
• Update specs for Ruby 2.1 Timeout behavior.