SciTools/iris — pull request #464 by esc24 (2013-04-17 13:27:41+00:00)
Title: Area weighted regridding

The PR adds area weighted regridding to ```iris.experimental.regrid```.

It is not the finished product:

1. More testing is needed,
2. I need to handle aux factories so the surface altitude is regridded using area weighting.
3. Removal of debug print statements.

I have put it up so @bblay can begin the review process.