allow list of operators in expect, so that result.expect also can be calculated from a list of states as expect(e_ops, result.states)
added unit tests for qutip.expect
minor docstring edit
fixed typos in the header
added a test that checks compatibility between Odedata.expect and expect(e_ops, Odedata.states)
Merge pull request #104 from jrjohansson/patch-expect

allow list of operators in expect