Release 0.5.1

[Shaumik-Ashraf]

Summary

• Add data/igs/.keep to git so it conforms to new platform deployable rspec
• update to v0.5.1

Testing Guidance

1. Checkout branch
2. bundle exec rake

[dehall]

I don't think anything permanent is supposed to go in the data directory. The new inferno-core release will copy the IG TGZ files there at startup, and potentially clear it out beforehand. So the docker-compose change is needed but the rest of the changes pointing to the data dir should probably be reverted

[dehall]

One last thing, running the test kit now results in data/igs/ipa_v100.tgz as an untracked file in git. Can you also add this line in gitignore: https://github.com/inferno-framework/inferno-core/blob/a81794d0c9d85e00036430d24a77d5b9c2da2b9b/.gitignore#L2

Unfortunately we might have to do this across a bunch of test kits if we haven't already

[Jammjammjamm]

I don't know why this is being removed. You should just update the commented out ig volume line for the old validator service as well.