* Bug fix `mixFetch` build
* Batch integration tests for mixFetch
* Bump RC version
* Tidy up READMEs
* Bump version to RC4 and fix up a few interfaces
* Bump version to RC5 and fix opts
* NodeJS SDK
* mixFetch usage example
* Update internal dev tester readme
* Add NodeJS packages to publish script
* Update lock file
* Upgrade `lerna`
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Co-authored-by: Mark Sinclair <mmsinclair@users.noreply.github.com>
Mark Sinclair