Fixed unitary matrix method to include only one list of gates
Fixed unitary matrix method to include only one list of gates

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