updated Dalitz Demo
Merge branch 'master' of ssh://github.com/anaderi/lhcb_trigger_ml
Merge branch 'master' of ssh://github.com/anaderi/lhcb_trigger_ml
Merge branch 'master' of ssh://github.com/anaderi/lhcb_trigger_ml
Merge branch 'master' of ssh://github.com/anaderi/lhcb_trigger_ml
Merge branch 'master' of ssh://github.com/anaderi/lhcb_trigger_ml
notebooks updated