Merge pull request #142 from google/upstream

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Merge pull request #124 from google/upstream

Added unit tests for different versions of EU Age Credential

Merge pull request #96 from google/upstream

Deprecate old v3 and v4 circuits

Merge pull request #84 from google/upstream

Updating circuit_maker to remove dependencies and conditionally build

Merge pull request #25 from google/upstream

Added support for different namespaces

Merge pull request #24 from google/restore_docs

Added back docs folder that was removed during upstream cleanup

Merge pull request #22 from google/upstream

Adding -01 version of spec