Netezza heracles fix

- PLE & PLP execution via Arachne Exec Engine (OHDSI#351) @wivern @ag…

…ackovka

- Support of Impala data sources (OHDSI#405, OHDSI#411, OHDSI#413, OHDSI#418, OHDSI#431)
@wivern @pavgra
- Separation of JDBC connection link and username & passwords into separate fields for Data sources (OHDSI#390, OHDSI#417) @pavgra @chrisknoll
- Storage of data sources' username & passwords in encrypted way (OHDSI#390) @wivern
- Invalidation of not finished Cohorts / IRs on startup (OHDSI#429) @wivern
- Added button to invalidate cohort generation job (OHDSI#430) @wivern

- Fixed concurrent auth token update (OHDSI#437, OHDSI#436) @pavgra
- Fixed data querying for Drug at baseline and Drug during cohort period reports (OHDSI#439) @pavgra
- Fixed Achilles heel execution at Netezza (OHDSI#446) @pavgra
- PLE name change fails (OHDSI#412) @pavgra
- Fixed possibility of duplicates presence in sec_role table (OHDSI#420) @pavgra
- Fixed Hikari timeout with turned on auth (OHDSI#426) @pavgra

Release 2.4.0 fixes (OHDSI#400)

* Fixed Healthcare Visit reports mapping
* PostgreSQL Flyway script fix
* Bump circe-be to 1.5.0
* Evidence_job increment fix
* Rollup to ancestor visit concept IDs for analysis 4020, 4021
* Update webapi.version to 2.4.0
* Revert column name change in drug_reports CTE.

Refactor vocab daimon handling

2.2.0 fixup (OHDSI#262)

* Call splitSql before executing batch statements.
* Use snake_case for treemap/drilldown reports.
* Generic mapper column conversion from snake to camelCase

Cohort reporting additions (OHDSI#230)

Cohort reporting additions OHDSI#223

Update SQL Render to v1.3.0

Increment version (OHDSI#218)

Merge pull request OHDSI#182 from OHDSI/v2.0-integration-candidate

V2.0.0 Release

Gracefully handle empty criteria groups in cohort definitions.

Fixes OHDSI#155