changed .gitignore to handle line endings nomalized
changed .gitignore to handle line endings nomalized

This setting tells git to always normalize the files specified. When
committed they are stored with LF, on checkout they are converted to the
OS's native line endings.
see: https://help.github.com/articles/dealing-with-line-endings

pythononwheels/pow_devel,pythononwheels/pow_devel,pythononwheels/pow_devel