Make getNode function public

The getNode function should be public so that DomElement objects can be accessed directly if need be.
[Process] Added ProcessBuilder::addEnvironmentVariables
Return BC compatibility for `@Route` parameters and default values
[FrameworkBundle] The config:dump-reference command shows the list of bundles with the table helper
[BrowserKit] Pass headers when `followRedirect()` is called
[Form] check the required output timezone against the actual timezone
of the input datetime object, rather than the expected timezone supplied
[Intl] made RegionBundle and LanguageBundle merge fallback data when using a country-specific locale
[PropelBridge] PropelTypeGuesser can now recognize columns by their phpName

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

Until now, the `PropelTypeGuesser` could only find columns by their
name.
Example: `created_at` was recognized but `createdAt` wasn't.

This PR adds the ability to match column's phpNames (in a
case-insensitive way).
[HttpKernel] fixed route parameters storage in the Request data collector (closes #8867)
merged branch stloyd/bugfix/issue7929 (PR #8697)

This PR was merged into the 2.2 branch.

Discussion
----------

[2.2] [BrowserKit] Pass headers when `followRedirect()` is called

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Tests pass?   | yes
| Fixed tickets | #7929
| License       | MIT

Commits
-------

0d07af8 [BrowserKit] Pass headers when `followRedirect()` is called
[BrowserKit] fixed headers when redirecting if history is set to false (refs #8697)
[BrowserKit] removed some headers when redirecting a request
[BrowserKit] fixed method/files/content when redirecting a request
[Yaml] Fixed filename in the ParseException message
merged branch fabpot/browserkit-redirect-22 (PR #8895)

This PR was merged into the 2.2 branch.

Discussion
----------

[BrowserKit] fixed the redirect behavior according to the RFC

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

Commits
-------

2d34e78 [BrowserKit] fixed method/files/content when redirecting a request
64e1655 [BrowserKit] removed some headers when redirecting a request
96a4b00 [BrowserKit] fixed headers when redirecting if history is set to false (refs #8697)
Merge branch '2.2' into 2.3

* 2.2:
  [BrowserKit] fixed method/files/content when redirecting a request
  [BrowserKit] removed some headers when redirecting a request
  [BrowserKit] fixed headers when redirecting if history is set to false (refs #8697)
  [BrowserKit] Pass headers when `followRedirect()` is called

Conflicts:
	src/Symfony/Component/BrowserKit/Client.php
	src/Symfony/Component/BrowserKit/Tests/ClientTest.php
merged branch fabpot/router-webprofiler (PR #8894)

This PR was merged into the 2.2 branch.

Discussion
----------

[HttpKernel] fixed route parameters storage in the Request data collector (closes #8867)

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | #8867
| License       | MIT
| Doc PR        | n/a

Commits
-------

c931eb7 [HttpKernel] fixed route parameters storage in the Request data collector (closes #8867)
merged branch stloyd/bugfix/issue-7724 (PR #8393)

This PR was merged into the 2.2 branch.

Discussion
----------

[2.2] Return BC compatibility for `@Route` parameters and default values

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | #7724
| License       | MIT

Commits
-------

d400b5a Return BC compatibility for `@Route` parameters and default values
fixed typo
Fixed annotation