Fixed line endings in the repository

Hello,

I’ve pushed a change to the master branch that will “fix” the line
ending issues that we’ve sometimes experienced. I added a .gitattributes
file that explicitly identifies some files (.txt, .xml, etc.) as “text
files” and asserted that text files should have “auto” handling.

That means a Windows user will see all of the text files in their local
repository as having PC line endings (CR/LF). A Mac or Unix user will
see all of the text files in their local repository as having Unix line
endings (LF).

Hopefully this will make life easier and simpler for everyone on both
sides of that divide!

                                        Be seeing you,
                                          norm

--
Norm Tovey-Walsh
Saxonica