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

logging

Applying PR OHDSI#126 as hotfix for 1.3.2.

Fixes OHDSI#122.

Truncate/drop #cohort_ends temp table.

Fixes OHDSI#121

Do not apply QualifiedLimitFilter when additional criteria is null.