GROOVY-6437: Sql.withTransaction() doesn't rollback on checked exceptions
Merge pull request #426 from paulk-asert/groovy6437

GROOVY-6437: Sql.withTransaction() doesn't rollback on checked exception...
GROOVY-5996: Sql#executeInsert does not return list of auto-generated keys
GROOVY-6820: Fix type checker not allowing the Outer.this notation
GROOVY-5996: Sql#executeInsert does not return list of auto-generated keys (also vararg variant)
Merge pull request #425 from paulk-asert/groovy5996

GROOVY-5996: Sql#executeInsert does not return list of auto-generated ke...
GROOVY-6821: Fix access to outer class method inside special constructor call
GROOVY-6823: Ensure direct getter access for outer class