I missed a Zq->Zq_compute renaming in commit cd2a1d75de581b75cefbd3b50a99c4b12cff3f72

Thanks to Leslie Hogben for reporting this bug.
Update the instructions to version 1.1.1
Work around a regression in dealing with typedefs of arrays that appeared in Cython 0.17.3 or so.

I posted a message to the Cython mailing list about this at https://groups.google.com/forum/?fromgroups=#!topic/cython-users/fSZgHqrlCOc
Update README to refer to version 1.1.2

1.1.2 contains an important workaround for a change in Cython