[Form] check the required output timezone against the actual timezone
of the input datetime object, rather than the expected timezone supplied
Revert "merged branch Tobion/flattenexception (PR #9111)"

This reverts commit 53b2048c4cf0b62251de3906c4665ff5adf31ec4, reversing
changes made to c60a8e962b03b6476db70c962a839b98127b1743.
bug#8809 [Form] enforce correct timezone (Burgov)

This PR was merged into the 2.2 branch.

Discussion
----------

[Form] enforce correct timezone

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | not sure if this is a BC break...
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | -
| License       | MIT
| Doc PR        | -

I'm using the Form component to handle JSON requests which come from AJAX requests. The JSON is formed by the Angular toJson method

A typical request would be:
```
{
  name: "Some name"
  start: "2013-08-21T05:00:00.000Z"
  end: "2013-08-21T15:00:00.000Z"
}
```

Note that in this case, what I entered in my input boxes are 7:00 for start and 17:00 for end times. As you can see, Angular (or Chrome, I'm not sure), converts this to the "Z" timezone. Since I cannot enforce the correct timezone client side, the timezone will differ from the one configured in the DateTimeType, however, instead of resulting in either an error or a conversion to the correct timezone, I get a datetime object in the wrong timezone, eventually resulting in wrong values in the database.

By checking the required output timezone against the actual timezone of the input datetime object, rather than the expected timezone supplied, this problem is solved.

Commits
-------

b0349a1 [Form] check the required output timezone against the actual timezone of the input datetime object, rather than the expected timezone supplied
[Form] add support for Length and Range constraint in order to replace MaxLength, MinLength, Max and Min constraints in next release (2.3)
bug #9188 [2.2][Form] add support for Length and Range constraint in ValidatorTypeGuesser (franek)

This PR was merged into the 2.2 branch.

Discussion
----------

[2.2][Form] add support for Length and Range constraint in ValidatorTypeGuesser

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | #9132
| License       | MIT
| Doc PR        |

MaxLength, MinLength, Min and Max constraints are deprecated on 2.2. Will be removed in 2.3.

Add support for type guessing of Length and Range constraints.

fix #9132 on 2.2 branch

Commits
-------

89a0404 [Form] add support for Length and Range constraint in order to replace MaxLength, MinLength, Max and Min constraints in next release (2.3)
Merge branch '2.2' into 2.3

* 2.2:
  [Form] add support for Length and Range constraint in order to replace MaxLength, MinLength, Max and Min constraints in next release (2.3)
  [Form] check the required output timezone against the actual timezone of the input datetime object, rather than the expected timezone supplied
Fix: duplicate usage of Symfony\Component\HttpFoundation\Response
bug #9190 Fix: duplicate usage of Symfony\Component\HttpFoundation\Response (realsim)

This PR was submitted for the master branch but it was merged into the 2.2 branch instead (closes #9190).

Discussion
----------

Fix: duplicate usage of Symfony\Component\HttpFoundation\Response

Duplicate usage of Symfony\Component\HttpFoundation\Response causes an error:
> PHP Fatal error:  Cannot use Symfony\Component\HttpFoundation\Response as Response because the name is already in use in src/Symfony/Component/Security/Http/Authorization/AccessDeniedHandlerInterface.php on line 17

Commits
-------

e602c09 Fix: duplicate usage of Symfony\Component\HttpFoundation\Response
Merge branch '2.2' into 2.3

* 2.2:
  Fix: duplicate usage of Symfony\Component\HttpFoundation\Response
Merge branch '2.3'

* 2.3:
  Fix: duplicate usage of Symfony\Component\HttpFoundation\Response
  [Form] add support for Length and Range constraint in order to replace MaxLength, MinLength, Max and Min constraints in next release (2.3)
  Revert "merged branch Tobion/flattenexception (PR #9111)"
  [Form] check the required output timezone against the actual timezone of the input datetime object, rather than the expected timezone supplied

Conflicts:
	src/Symfony/Component/HttpKernel/EventListener/ExceptionListener.php