Features
* feat(MultiSign): bump version ([`ab7958d`](https://github.com/blockchain-certificates/cert-schema/commit/ab7958d84d1b8267a4652c26da40e1d0560cfb99))
* feat(MultiSign): define suite contexts object ([`ce301a9`](https://github.com/blockchain-certificates/cert-schema/commit/ce301a93a83233a4ed11efb2803e695fcc61362b))
* feat(MultiSign): allow extending preloaded contexts before normalization ([`7110921`](https://github.com/blockchain-certificates/cert-schema/commit/71109210b2942276e0b04ff943cd403300f70ff0))
* feat(v3.1): introduce 3.1 concern ([`748ee8a`](https://github.com/blockchain-certificates/cert-schema/commit/748ee8af3b6c1abf82f80fbbd666b4a2a52ea765))
* feat(MultiSign): split MerkleProof2019 from Blockcerts context, define other required contexts ([`a9c2b85`](https://github.com/blockchain-certificates/cert-schema/commit/a9c2b8586a4c69b6731bd79e530c3920cddec148))
Refactoring
* refactor(Test): rename tests to better reflect test case ([`19b1ed4`](https://github.com/blockchain-certificates/cert-schema/commit/19b1ed4be9cf0f961085da7261816275baddcc8b))
Testing
* test(JSONLDNormalize): add proper test check ([`e14ae3b`](https://github.com/blockchain-certificates/cert-schema/commit/e14ae3bc7dd6ea606e9a9dbbe064ed0169ca42b9))
Unknown
* Merge pull request 43 from blockchain-certificates/feat/multisign
Feat/multisign ([`3aba646`](https://github.com/blockchain-certificates/cert-schema/commit/3aba646f44f8ebe0a39de905694e88fcea1bdb68))