added Greg's fix to CHANGELOG
added Greg's fix to CHANGELOG

jcupitt/ruby-vips,cloudinary/ruby-vips,cloudinary/ruby-vips,househappy/ruby-vips,househappy/ruby-vips,jcupitt/ruby-vips,househappy/ruby-vips,househappy/ruby-vips,mariovisic/ruby-vips,mariovisic/ruby-vips