Made code readable
Reworded article a bit
feature #3743 Improve examples in parent services (WouterJ)

This PR was submitted for the master branch but it was merged into the 2.3 branch instead (closes #3743).

Discussion
----------

Improve examples in parent services

The code examples were not readable. That isn't a good thing for the documentation :)

| Q   | A
| --- | ---
| Doc fix? | yes
| New docs? | no
| Applies to | all
| Fixed tickets | -

Commits
-------

0535e18 Reworded article a bit
a54ffed Made code readable
Adding information on internal reverse proxy

For more information see: http://stackoverflow.com/questions/9029757/how-do-i-get-the-user-ip-address-in-symfony2-controller
minor #3778 Adding information on internal reverse proxy (tcz)

This PR was submitted for the 2.4 branch but it was merged into the 2.3 branch instead (closes #3778).

Discussion
----------

Adding information on internal reverse proxy

For more information see: http://stackoverflow.com/questions/9029757/how-do-i-get-the-user-ip-address-in-symfony2-controller

Commits
-------

8f0f89d Adding information on internal reverse proxy
language tweak for the tip introduced in #3743
feature #3756 [WCM][Console] Add Process Helper documentation (romainneutron)

This PR was merged into the master branch.

Discussion
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[WCM][Console] Add Process Helper documentation

| Q             | A
| ------------- | ---
| Doc fix?      | yes
| New docs?     | yes (symfony/symfony#10627)
| Applies to    | 2.5+
| Fixed tickets | n/a

Commits
-------

1705231 [Console] Add Process Helper documentation
Revert "[Console] Add Process Helper documentation"

This reverts commit 1705231f31b0120ab40f0a7dfb1cb1fc834dc7cc.
feature #3752 [Console] Add documentation for QuestionHelper (romainneutron)

This PR was merged into the master branch.

Discussion
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[Console] Add documentation for QuestionHelper

| Q             | A
| ------------- | ---
| Doc fix?      | no
| New docs?     | yes (https://github.com/symfony/symfony/pull/10606)
| Applies to    | 2.5+

This is the documentation for the new Question Helper

Commits
-------

f4ee337 [Console] Add documentation for QuestionHelper
[#3752] Adding the question helper to the helper list and marking dialog as deprecated
minor #3793 language tweak for the tip introduced in #3743 (xabbuh)

This PR was merged into the 2.3 branch.

Discussion
----------

language tweak for the tip introduced in #3743

| Q             | A
| ------------- | ---
| Doc fix?      | yes
| New docs?     | no
| Applies to    | all
| Fixed tickets |

Commits
-------

deb5d71 language tweak for the tip introduced in #3743
Merge branch '2.3' into 2.4

Conflicts:
	book/security.rst
	book/service_container.rst
Merge branch '2.4'

Conflicts:
	reference/forms/types/collection.rst
	reference/forms/types/file.rst
Updated changelog for March
Updated changelog for March
Updated changelog for March
Fixed list
Fixed wrong blockquote rendering
Fix typo.
add missing 's' for plural.