1.12.0

CHANGES:

Features

• Fix cancellation mechanism for all requests (#707)

• Allow cancellation of formatting requests (#707)

• Add --fallback-read-dot-merlin to the LSP Server (#705). If ocamllsp is
  started with this new flag, it will fall back to looking for Merlin
  configuration in .merlin files rather than calling dune ocaml-merlin.
  (#705)

• Support folding more ranges (#692)