aplpy/aplpy — pull request #116 by keflavich (2013-05-13 16:29:35+00:00)
Title: added a "bugfix" / hack to copy pc -> cd

As stated, it's a simple fix but solves at least my current problem.

The issue is reported here:
https://github.com/astropy/astropy/issues/1084

`astropy.wcs.to_header` converts `cd` to `pc`, but `aplpy` only parses `cd`, not `pc`.