[Cython] 0.20.2

[Stefan Behnel]

Stefan Behnel, 22.02.2014 10:02:
> there are a couple of nice additions and fixes in the current master that
> could go out as a 0.20.2 some time soon. I suggest waiting another couple
> of days for more bug reports to come in and then just send it out.

I merged the current master over into 0.20.x. The majority of changes were
bug fixes, and the rest wasn't worth putting back for the next major
release IMHO.

I suggest we apply further fixes directly to the release branch from now on
and move on to 0.21 with the master branch.

Stefan