Rose release 59. Maintenance release against [Rose 2019.01.1](https://github.com/metomi/rose/releases/tag/2019.01.0). Companion of [cylc-flow-7.8.3](https://github.com/cylc/cylc-flow/releases/tag/7.8.3) and [fcm-2019.05.0](https://github.com/metomi/fcm/releases/tag/2019.05.0).
See [change log](https://github.com/metomi/rose/blob/2019.01.x/CHANGES.md) for detail.