Release of Daml SDK 0.13.54

Release Notes

Image of SDK Release Process

by SDK Release Process on 20 February, 2020

Sandbox

Removed the warnings regarding static time and scenarios on
initialization. We will not deprecate these until we have a stable
alternative.
If no ledger ID is provided when running against an existing ledger,
use the existing ID. Previously, Sandbox would fail to start.

Daml Standard Library

Add subtractDays to the Daml Standard Library.