Update rails library with latest image

[Yanchek99]

docker-library/rails@e9f8feb

[yosifkit]

Thanks for your help!

This file can be generated from ./generate-stackbrew-library.sh in the ruby repo, can you update the other commit ids as well?

$ ./generate-stackbrew-library.sh
# maintainer: InfoSiftr <github@infosiftr.com> (@infosiftr)

4.2.6: git://github.com/docker-library/rails@04006011344175c10b6864193eee74d626b84b11
4.2: git://github.com/docker-library/rails@04006011344175c10b6864193eee74d626b84b11
4: git://github.com/docker-library/rails@04006011344175c10b6864193eee74d626b84b11
latest: git://github.com/docker-library/rails@04006011344175c10b6864193eee74d626b84b11

onbuild: git://github.com/docker-library/rails@9df9b5e6b1519faf22e1565c2caaebf7cc1c665b onbuild

Edit: it is also grabbing the commit that changed the file rather than just the newest commit.

[Yanchek99]

@yosifkit No problem and sorry about the manual change. Guess I was going to fast to realize there was a handy script for that.

[tianon]

LGTM

Build test of #1554; c33d489 (rails):

$ bashbrew build "rails"
Cloning rails (git://github.com/docker-library/rails) ...
Processing rails:4.2.6 ...
Processing rails:4.2 ...
Processing rails:4 ...
Processing rails:latest ...
Processing rails:onbuild ...
$ bashbrew list --uniq "$url" | xargs test/run.sh
testing rails:4.2.6
    'utc' [1/4]...passed
    'cve-2014--shellshock' [2/4]...passed
    'no-hard-coded-passwords' [3/4]...passed
    'override-cmd' [4/4]...passed
testing rails:onbuild
    'override-cmd' [1/1]...passed