dug

https://github-production-release-asset-2e65be.s3.amazonaws.com/512295/77a44648-9d8b-11e4-997b-777bcaa0a9cf?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIAIWNJYAX4CSVEH53A%2F20180524%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Date=20180524T153214Z&X-Amz-Expires=300&X-Amz-Signature=b15dcfc595958dbb68246b6cc27ef2d915ba263a3a2e40dbea627101e113c577&X-Amz-SignedHeaders=host&actor_id=0&response-content-disposition=attachment%3B%20filename%3Dgrails-2.4.2.zip&response-content-type=application%2Foctet-stream