Three undefined names (#254)
Three undefined names (#254)

* Three undefined names

* n —> num_qubits to resolve undefined names

* random_unitary() —> random_unitary_matrix() to resolve undefined name

* Remove flake8

* Force Travis CI to run tests

Travis CI was having execution problems yesterday.

* Force again

QISKit/qiskit-sdk-py,atilag/qiskit-sdk-py,atilag/qiskit-sdk-py,atilag/qiskit-sdk-py,QISKit/qiskit-sdk-py,QISKit/qiskit-sdk-py