fixed bug in hadamark reported by @ajgpitch. Closes #257
fixed bug in hadamark reported by @ajgpitch. Closes #257

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