Last use of `unicode` in the Python 3.5 version

[Edwin Dalmaijer]

In line 510, a list of values is converted to a list of unicode values:

responses = map(unicode, list(respdict[targetstring]))

This should be:

responses = map(str, list(respdict[targetstring]))

(Might also be good to update the comments.)

Would you mind picking this up, @kburk1997? :)

[Kathleen Burkhardt]

Will do.

[Edwin Dalmaijer]

Thanks! Solved with your commit.