progrium/buildstep — pull request #129 by progrium (2014-12-22 23:00:28+00:00)
Title: drops all buildstep scripts and defers operations to herokuish tool

- dropped all scripts under builder (replaced by [herokuish](https://github.com/gliderlabs/herokuish))
- any extra files are installed via rootfs
- backwards compatibilty is maintained via symlinks+wrappers
- deprecated ./buildstep script