This reverts c16ae8a0.
What was before was correct, it concerns `Makefile.algo`.
Thanks to @mikael-s.

See #3310.

feature-a/3387-free-memory-when-objects-become-useless-in-windows into dev

Closes #3387

See merge request !253

Feature a/3389 no int array

See merge request !252

The tests instantiated 67 Sequence objects... all of them with a NULL *seq.

Dead code, live memory.
See #3389.

For more informations see #3387.

1. missing semi-colon
2. Needed `-T` to the `ln` command so that the link is
   not done inside the `next` directory

./algo/tests/should.py is already versioned under the directory algo/. No need to add it again

See #3327 (comment 106144)

Case changes may not be very meaningful.
Hum… actually why do we have lower and upper cases sequences?

See #3364.

See #3364.

Use same sequences for all germlines

Closes #3372 and #3373

See merge request !250

Partially revert 806f2180.
See #2645.

We also want to be able to take sequences from NCBI and gap them. See #2645.
Partially revert 806f2180.