ADDED: switch for generating csc matrices in permute
ADDED: switch for generating csc matrices in permute

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