use parallel_map in parfor in ipynbtools module
use parallel_map in parfor in ipynbtools module

anubhavvardhan/qutip,zasdfgbnm/qutip,cgranade/qutip,anubhavvardhan/qutip,cgranade/qutip,qutip/qutip,zasdfgbnm/qutip,qutip/qutip