Adding .gitattributes file to standardize line-ending conversion
Normalize line-endings on GitHub, now that there are is a .gitattributes file
remove CRLF line endings for .sln files in .gitattributes

This was just an example, but we shouldn't have any .sln files in
here (they're a Visual Studio thing, apparently).
Merge branch 'longdistancevoter-normalize-line-endings'