This breaks the caching, because those patches have a recent timestamp (due to
git recloning).

This is a partial revert of 8a3938eb

Johannes Pfeifer authored Jul 31, 2019 and Stéphane Adjemian committed Sep 06, 2019

Fixes #1622

– before executing the rule for unpacking the source, delete previously
  unpacked sources to avoid file overwrite (delete all versions so that the
  Gitlab cache does not grow too big)
— ensure that those rules are executed when a patch is modified

The MEX files are built out-of-tree (because we want to do them in parallel).
This would create a potential race condition if several builds want to create
the symlinks under mex/matlab/ or mex/octave/.

The solution is to disable those symlinks for out-of-tree builds.

Do not update OpenBLAS to 0.3.7, because that version fails to build when
LAPACKE is not requested.

The scripts are based the former “dynare-build” project. They have been
overhauled and simplified.

Building a Windows package (both installer and zip archive) is as easy as
running “make -C windows” (provided the right Debian packages are installed,
use the “windows/install-packages.sh” script for that purpose).

The layout of MEX files for Octave in the package has been
changed (mex/octave/win32/ and mex/octave/win64/ instead of mex/octave32/ and
mex/octave/), for consistency with MATLAB MEX.

imcforecast.m: Make code robust to 1 period

See merge request Dynare/dynare!1659

When using 1 period, the second dimension was a singleton that was removed as well by squeeze, resulting in a column vector when a row vector/matrix was expected. Fixes https://forum.dynare.org/t/problem-with-the-conditional-forecast-in-dynare-4-5-7/14385/2

doc: update for changes in reporting submodule introduced in cf1e88c4

doc: remove warning from compilation by using anonymous reference instead (two underscores instead of one)

The sleep() function has been removed in favor of pause().

The minimum required version of Bison is now 3.2

Remove kstate in dyn_second_order_solver

See merge request Dynare/dynare!1656

NK_baseline_steadystate.m: Cosmetic changes

See merge request Dynare/dynare!1658