What’s Changed
* [FEATURE] Auto-install Python DB packages. If the required packages for a DB library are not installed, GE will offer the user to install them, without exiting CLI
* [FEATURE] Add new expectation expect_table_row_count_to_equal_other_table for SqlAlchemyDataset
* [FEATURE] A profiler that builds suites from JSONSchema files
* [ENHANCEMENT] Add ``.feather`` file support to PandasDatasource
* [ENHANCEMENT] Use ``colorama init`` to support terminal color on Windows
* [ENHANCEMENT] Update how_to_trigger_slack_notifications_as_a_validation_action.rst
* [ENHANCEMENT] Added note for config_version in great_expectations.yml
* [ENHANCEMENT] Implement "column_quantiles" for MySQL (via a compound SQLAlchemy query, since MySQL does not support "percentile_disc")
* [BUGFIX] "data_asset.validate" events with "data_asset_name" key in the batch kwargs were failing schema validation
* [BUGFIX] database_store_backend does not support storing Expectations in DB
* [BUGFIX] instantiation of ExpectationSuite always adds GE version metadata to prevent datadocs from crashing
* [BUGFIX] Fix all tests having to do with missing data source libraries
* [DOCS] will/docs/how_to/Store Expectations on Google Cloud Store