2.14.0 - more maintenance features

Fixed

• Errors from box.ctl.promote and box.ctl.demote now are logged.

Changed

• Update membership dependency to 2.4.6.

• Cartridge doesn't fetch schema in inner pool.connect calls.

• Update vshard dependency to 0.1.31.

Added

• fetch_schema option to rpc.get_connection.

• Shortcut for get_topology in Cartridge API.