Fixed charset support for Pdo_Pgsql.
fix HeadLink docblock method declaration hints
Fix: Indentation of method arguments
Fix: More indentation
Merge branch 'release/bump'

2.3.2dev
Add hydratedMethodName private member to optimize the hydrate() method for loops.
Remove unused variable.
Add fail test case
Fix collection with element validation
Add error message assertion
Add assertion with fieldset inside collection
SessionManager fails validation on listeners that do not perform any operation
Session validator listeners should strictly fail when returning `false`
Merge branch 'Ocramius-hotfix/session-validation-listeners-null-return-values'

Close #6147
Merge branch 'Ocramius-hotfix/session-validation-listeners-null-return-values' into develop

Forward port #6147
Zend\Db\Sql
- Fixed AbstractSql's processSubSelect to use decorators when calling getSqlString()
Merge branch 'ralphschindler-hotfix/5794'
Merge branch 'ralphschindler-hotfix/5794' into develop
Merge pull request #6141 from localheinz/bugfix/indentation

Fix: Indentation of method arguments
Merge branch 'hotfix/6141'

Close #6141