Fixes siconos#346 (blas/lapack include dir error) fixes siconos#347 (…

…gfortran10 compat) and numpy.distutils missing package

[examples] remove unneeded line in BulletBouncingBoxDynamic.cpp

[ChangeLog] start to update for 4.1

[numerics] set the best choice for rho by defaults in NSN one contact…

… solvers

Version 4.0.0

[examples] partial fix for BulletBouncingBox.py

[Numerics] cmake : 3.7.0 -> 3.7.1

[Numerics, Example] move dust under the carpet

3.6.1 on 3.6.x

3.6.0 version + git sha1 fix