Change Willi's affiliation

See merge request Dynare/dynare!1836

There is (on 2021-03-29) a problem in the -static-libgfortran linker option that
affects the Dynare++ binaries.
See https://github.com/msys2/MINGW-packages/issues/7023
and https://github.com/msys2/MINGW-packages/issues/6986
Until this is fixed, the workaround is to add the --default-image-base-low linker
option.
We do *not* want to do this when cross-compiling from Debian (because the option does
not exist there), hence we test for cross-compilation before applying the workaround.

posterior_sampler.m: make sure proposal density fields are set in parallel

See merge request Dynare/dynare!1835

— avoid outputing the whole Github page to install.log
— also make it more robust by directly testing return code

perfect foresight: provide debugging information for singular Jacobian

Closes #1732

See merge request Dynare/dynare!1834

Bug introduced in 11f8f9c7

The datafile was name “data.m”, and for some unidentified reason, this stopped
working with MATLAB R2021a.

Closes Dynare/dynare#1732

The current Octave support is utterly broken (both in stable and unstable), it
crashes Octave. It relies on an unofficial Octave app for
macOS (https://octave-app.org), which is infrequently updated.

This commits drop support for Octave in the macOS package. We will now tell our
macOS+octave users to use the Homebrew Dynare package (which is maintained by
the Homebrew team, and is in reasonably good shape).

Closes: #1764

In its output, the MEX was returning values for all endogenous variables, but
it was used in a context where only the variables from oo_.dr.restrict_var_list
were expected (as is done with local_state_space_iteration_2 MEX).

This commit fixes this discrepancy, and also fixes the test that was checking
that both MEX are returning the same output.

Closes: #1768

The problem had been introduced by the previous preprocessor submodule update.

Ref. #1680: perfect foresight

See merge request Dynare/dynare!1833

Ref. #1680

Ref. #1680 : 2nd-order welfare

See merge request Dynare/dynare!1828

The “io” package is a dependency, hence must be explicitly installed first.

[skip ci]