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* new: massive expansion of XBR CLI and EIP712 helpers
* new: more (exhaustive) serializer cross-tripping tests
* fix: some code quality and bug-risk issues (1379)
* fix: removed externalPort assignment when not set (1378)
* fix: docs link in README (1381)
* fix: docs typo frameword -> framework (1380)
* fix: improve logging; track results on observable mixin
* new: add environmental variable that strips xbr. (1374)
* fix: trollius is gone (1373)
* new: added ability to disable TLS channel binding (1368)