normalized line endings

see
http://www.hanselman.com/blog/YoureJustAnotherCarriageReturnLineFeedInTheWall.aspx
and https://help.github.com/articles/dealing-with-line-endings
Merge pull request #27 from neothemachine/gitattributes

I don't have the patience to wade through ALL 66k lines to see that it is all only lf/cr conversions but otherwise looks ok and yeah makes sense. :)