* [AMD-120] Add relation pre-processor in Neo4jPublisher

* Update

* Added DeleteRelationPreprocessor

* Added DeleteRelationPreprocessor

* Update

* Update

* generalize ElasticsearchDocumentTransformer

* remove typo

* fix lint

* Add Kafka source extractor

* Update per comment

* Add Postgres Metadata extractor and Test

* add instructions for postgres/redshift to README

Skip existing version on Pypi

Discussion found in https://amundsenworkspace.slack.com/archives/CHQERT0D7/p1558721194000600?thread_ts=1558633608.153700&cid=CHQERT0D7

* No need to show the exceptions body info when index not found

* Update elasticsearch_publisher.py

* Update elasticsearch_publisher.py

* Update elasticsearch_publisher.py

* Update elasticsearch_publisher.py

* Update elasticsearch_publisher.py

* [#60]: Fixes paging over dataset and column count

* Update setup.py

The requirement.txt has version mismatch with setup.py.

* [DPTOOLS-2312] Add callback registration in Publisher

* Increment version

* [DPTOOLS-2299] Separate Index creation step from Node publish

* Update

* Implements BigQuery metadata extractor

* Increment version

* Increment version correctly to 1.2.0

* Set version to 1.1.0

* gitignore dist/ as in metadataservice PR #28

* Add load of example users

* Ditch utf-8 encode for consistensy w. other models

Add badges to databuilder repo

* [DPTOOLS-2210] Upgrade Neo4j driver to 1.7.2

* Update version

* Revert "[DPTOOLS-2210] Upgrade Neo4j bolt driver to the latest (#34)"

This reverts commit 460692e2.

* Update version

* Upgrade Neo4j driver to the latest

* Upgrade version

* Update README.md

* Update README.md

* ES index written must match reader side

Change this line https://github.com/lyft/amundsendatabuilder/blob/v1.0.11/example/scripts/sample_data_loader.py#L177 to match the current hardcoded value in the search service at 
https://github.com/lyft/amundsensearchlibrary/blob/v1.0.0_4/search_service/config.py#L23. This means it’s backwards compatible with existing search service Docker containers etc.

* Bump package version to 1.0.12

* unquote bool value is_view when publish to neo4j

* fix test

* index presto views

* fix test

* address comment

* remove alphabetica sorting

* bump up version

* Modify es transformer to support new ES document

* Update per feedback

Update user model