I'm taking a look at the docs now.

I'm considering adding a table/list of characters python treats as newlines, but it seems like this might fit better as a note in http://docs.python.org/library/stdtypes.html#str.splitlines or somewhere else in stdtypes. I'll start working on it now, but please let me know what you think about this.

This is my first attempt at a patch, so I greatly appreciate your help so far.