Fixed escaping of service identifiers in configuration
merged branch jaikdean/twig-configuration-service-escaping (PR #8686)

This PR was submitted for the master branch but it was merged into the 2.2 branch instead (closes #8686).

Discussion
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[TwigBundle] Fixed escaping of service identifiers in configuration

To recreate, add the following to `config.yml`:

    twig:
        globals:
            foo: "@@bar"

**Expected behaviour:** Twig has a global variable named `foo` containing the string `@bar`.

**Actual behaviour:** ServiceNotFoundException: The service "twig" has a dependency on a non-existent service "@bar".

Environment tested on:
- Symfony Standard Distribution 2.3.2
- OS X 10.8.4
- PHP 5.4.16

Commits
-------

d613110 [TwigBundle] Fixed escaping of service identifiers in configuration
[HttpKernel] fixer HInclude src (closes #8951)
merged branch fabpot/hinclude-signer (PR #8960)

This PR was merged into the 2.2 branch.

Discussion
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[HttpKernel] fix HInclude src (closes #8951)

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | #8951
| License       | MIT
| Doc PR        | n/a

fixes a regression introduced in #8879

Commits
-------

49f5027 [HttpKernel] fixer HInclude src (closes #8951)
[HttpFoundation] fixed regression in the way the request format is handled for duplicated requests (closes #8917)
merged branch fabpot/format-fix (PR #8961)

This PR was merged into the 2.2 branch.

Discussion
----------

fixed regression in the way the request format is handled

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | #8917
| License       | MIT
| Doc PR        | n/a

Commits
-------

719b2bf [HttpFoundation] fixed regression in the way the request format is handled for duplicated requests (closes #8917)
Merge branch '2.2' into 2.3

* 2.2:
  [HttpFoundation] fixed regression in the way the request format is handled for duplicated requests (closes #8917)
  [HttpKernel] fixer HInclude src (closes #8951)
  Fixed escaping of service identifiers in configuration