increase tolerance in expm test in qutip/tests/test_qobj because the previous value 1e-12 has repeatedly been reported to result in false errors on 32 bit systems
increase tolerance in expm test in qutip/tests/test_qobj because the previous value 1e-12 has repeatedly been reported to result in false errors on 32 bit systems

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