Remove empty parser.rb file and fix require commands
Remove .gitattributes

This ensures that CRLF line endings are used for a file that doesn't exist
anymore.
Remove Broadcaster class

Broadcaster class is used nowhere in the Cucumber lib and the '#:nodoc:' comment
indicates that this class is not meant to be used publicly.
Merge pull request #570 from jimvm/remove_gitattributes

Remove .gitattributes
Merge pull request #571 from jimvm/remove_broadcaster_class

Remove Broadcaster class
Merge pull request #569 from jimvm/remove_parser_file

Remove empty parser.rb file and fix require commands