Nodestream

What's Changed
* Update README.md by zprobst in https://github.com/nodestream-proj/nodestream/pull/40
* Update README.md by zprobst in https://github.com/nodestream-proj/nodestream/pull/41
* Reorganize the file structure of the project by zprobst in https://github.com/nodestream-proj/nodestream/pull/42
* Ignore Flush operations in Pipelinerun() by zprobst in https://github.com/nodestream-proj/nodestream/pull/43
* Add a Transformer to Expand Embedded JSON fields by zprobst in https://github.com/nodestream-proj/nodestream/pull/35


**Full Changelog**: https://github.com/nodestream-proj/nodestream/compare/v0.3.0...v0.4.0

What's Changed
* Fix typo in neo4j driver's query.py by zprobst in https://github.com/nodestream-proj/nodestream/pull/29
* Add File Validation to `nodestream.yaml` files by zprobst in https://github.com/nodestream-proj/nodestream/pull/33
* Add Integration Test Scaffold by zprobst in https://github.com/nodestream-proj/nodestream/pull/34


**Full Changelog**: https://github.com/nodestream-proj/nodestream/compare/v0.2.0...v0.3.0

What's Changed?

Everything. This is the first release.