+ fix in body problem with centering
+ fix in mpotutil mulcplot passing ax
+ showGs and furniture
clearing notebooks before commiting
Merge branch 'master' of https://github.com/pylayers/pylayers

Conflicts:
	pylayers/util/pyutil.py
Modif in docstring Fsynth3 incorrect
modif in channel
ifixing conflict
Merge branch 'master' of https://github.com/pylayers/pylayers

Conflicts:
	doc/modules/location.geometric.rst
	doc/notebook/4-signal/.ipynb_checkpoints/UwbWaveforms-checkpoint.ipynb
fixing minor problem after last major update