ruby: 2.2.3 -> 2.2.5 and 2.1.7 -> 2.1.10

[vrthra]

Motivation for this change

Things done

• Tested using sandboxing
  (nix.useChroot on NixOS,
  or option build-use-chroot in nix.conf
  on non-NixOS)
• Built on platform(s)
  • NixOS
  • OS X
  • Linux
• Tested compilation of all pkgs that depend on this change using nix-shell -p nox --run "nox-review wip"
• Tested execution of all binary files (usually in ./result/bin/)
• Fits CONTRIBUTING.md.

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[mention-bot]

@vrthra, thanks for your PR! By analyzing the annotation information on this pull request, we identified @zimbatm, @globin and @manveru to be potential reviewers

[vrthra]

Error on travis was No space left on device for one. I am not quite sure why Darwin failed.

[joachifm]

Needs a rebase

[vrthra]

I will update with a rebase soon. I am currently in a location with very sporadic internet access with limited bandwidth budget.

[vrthra]

@joachifm I have updated the PR

[vrthra]

@joachifm Ruby 1.x and 2.0.0 is EOLed Can they be removed from the pkgs/development/interpreters/ruby/default.nix? What are the guidelines for Nix packaging on removing old versions packages?

[fpletz]

We usually remove software versions that are not maintained upstream anymore. One exception would be when there are still packages in nixpkgs depending on old versions that can't be fixed. As you're stepping up as maintainer (thanks btw!) I'll guess it's your decision now. ;)

Either way, this should be merged. 👍