Matlab Production Server (MPS) fails when onboarding the dynare package
because of `endif` and `endfunction` which are not available in matlab's
syntax.
Since version 1.6, the optim Forge package has an implementation of fmincon.
Hence we can now use mode_compute=1 under Octave.
This commit also adds tests/optimizers/fs2000_1.mod to the testsuite. It will
be skipped under MATLAB if the optimization toolbox is not there, or under
Octave if optim ≥ 1.6 is not there.
Packages are no longer autoloaded, so testing whether they are "Loaded" does
not work in all cases.
The function now ensures that the package is loaded.
Stéphane Adjemian (Charybdis)
Sébastien Villemot
Sébastien Villemot