2.2.0

CHANGES:

• dune test is now a command alias for dune runtest. This is to make the CLI
  less idiosyncratic (#3006, @shonfeder)

• Allow to set menhir flags in the env stanza using the menhir_flags field.
  (#2960, fix #2924, @bschommer)

• By default, do not show the full command line of commands executed
  by dune when dune is executed inside dune. This is to make
  integration tests more reproducible (#3042, @diml)

• dune subst now works even without opam files (#2955, fixes #2910,
  @fangyi-zhou and @diml)

• Hint when trying to execute an executable defined in the current directory
  without using the ./ prefix (#3041, fixes #1094, @voodoos).

• Extend the list of modifiers that can be nested under
  with-accepted-exit-codes with chdir, setenv, ignore-<outputs>,
  with-stdin-from and with-<outputs>-to (#3027, fixes #3014, @voodoos)

• It is now an error to have a preprocessing dependency on a ppx rewriter
  library that is not marked as (kind ppx_rewriter) (#3039, @snowleopard).

• Fix permissions of files promoted to the source tree when using the
  shared cache. In particular, make them writable by the user (#3043,
  fixes #3026, @diml)

• Only detect internal OCaml tools with .opt extensions. Previously, this
  detection applied to other binaries as well (@kit-ty-kate, @rgrinberg, #3051).

• Give the user a proper error message when they try to promote into a source
  directory that doesn't exist. (#3073, fix #3069, @rgrinberg)

• Correctly build vendored packages in -p mode. These packages were
  incorrectly filtered out before. (#3705, @diml)

• Do not install vendored packages (#3704, @diml)

• make now prints a message explaining the main targets available
  (#3085, fix #3078, @diml)

• Add a byte_complete executable mode to build programs as
  self-contained bytecode programs
  (#3076, fixes #1519, @diml)