Fixed charset support for Pdo_Pgsql.
Merge branch 'hotfix/#6245-invalid-date-step-error-with-dst'

Close #6245
Merge branch 'cs/abstract-controller-test-case-closure-braces'

Close #6238
Merge pull request #6033 from hschletz/fix-db-charset-support

Fixed charset support for Pdo_Pgsql.
Merge branch 'hotfix/6033' into develop

Forward port #6033