use admin's translation domain for delete checkbox

otherwise it's in messages ...
Merge pull request #2063 from uwej711/use_translation_domain_2_2

use admin's translation domain for delete checkbox
Update HelperController.php

fix bug for postgresql : Invalid text representation: 7 ERROR:  invalid input syntax for integer: """
Update HelperController.php
Improve support for postgresql when objectId="" and not null
he confirm exit solution does not work correctly for multiple forms on one page because the serialized data are generated over an collection and not over the single forms.
Update field_types.rst

I thought that it would be good to mention here that all symfony 2 field types are accepted.
http://symfony.com/doc/current/reference/forms/types.html

textarea as example
adjust ErrorElement for symfony 2.5
Merge pull request #2186 from dbu/backport-2.5-fix

adjust ErrorElement for symfony 2.5 - in sonata 2.2 branch
Update installation.rst

Link fixed
Merge pull request #2199 from todstoychev/patch-3

Update installation.rst
Fix history actions permissions check
Replace concrete ConstraintValidatorFactory type hint with interface
Merge pull request #2278 from EmmanuelVella/validator

Replace concrete ConstraintValidatorFactory type hint by interface
Merge pull request #2274 from EmmanuelVella/history-acl

Fix history actions permissions check
Pass object to isGranted if action is VIEW or EDIT in list identifier
Merge pull request #2114 from UFOMelkor/hotfix/js-confirm-exit-form-multiple-forms-2-2

confirm exit for multiple forms (2.2)
Merge pull request #2127 from MartyFly/patch-1

Update field_types.rst
Merge pull request #2280 from EmmanuelVella/list-identifier

Pass object to isGranted if action is VIEW or EDIT in list identifier
Merge remote-tracking branch 'origin/2.2'

Conflicts:
	Resources/doc/reference/installation.rst
	Resources/public/Admin.js