Avoid unnecessary recomputation.

As src/python-module-py.cpp includes sot/core/debug.hh

Release of version 3.4.2.

[CMake] add missing link with dynamic-graph-python

Fix build on Debian stretch.

package.xml is able to handle names with minus.

[CMake] Synchronize module.

Release of version 3.3.1.

ref https://github.com/stack-of-tasks/pinocchio/issues/849

use Eigen::DenseIndex to fix build on eigen3.2, fix #50

Release of version 3.3.0.

[CMake] only sot-core >= 4.1 is compatible with pinocchio 2