Add the referer information that could help you findout where's the link comes from.
[HttpKernel] tweaked previous commit
[Validator] Removed unnecessary check as symfony require php >= 5.3.3.
extract method
merged branch dawehner/exception-clone-request (PR #8716)

This PR was merged into the master branch.

Discussion
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extract clone duplication logic in exceptionlistener

Drupal needs potentially to adapt the exception listener to add more information from the original request. (see http://drupal.org/node/2057607) so what about extracing some of the logic into a new method.

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

Commits
-------

6af2801 extract method
merged branch lyrixx/email-validator-php533 (PR #8712)

This PR was merged into the master branch.

Discussion
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 	[Validator] Removed unnecessary check as symfony requires php >= 5.3.3.

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

Commits
-------

cf31dfb [Validator] Removed unnecessary check as symfony require php >= 5.3.3.
merged branch fabpot/referer-in-404 (PR #8708)

This PR was merged into the master branch.

Discussion
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Add the referer information that could help you findout where's the link comes from

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

#8218 rebased on master and slightly tweaked.

Commits
-------

8eb163d [HttpKernel] tweaked previous commit
bb5954e Add the referer information that could help you findout where's the link comes from.
[Security] Added a check for strategies in AccessDecisionManager