[SecurityBundle] fixed tests when used in standalone
Merge branch '2.3' into 2.4

* 2.3:
  [SecurityBundle] fixed tests when used in standalone
fixed some composer.json to make standalone component tests pass
fixed standalone component tests depending on Validator and Form
[Validator] fixed component standalone tests
fixed standalone tests
fixed standalone tests
[Debug] fixed class lookup when using PSR-0 with a target dir
minor #12071 [Debug] fixed class lookup when using PSR-0 with a target dir (fabpot)

This PR was merged into the 2.4 branch.

Discussion
----------

[Debug] fixed class lookup when using PSR-0 with a target dir

| 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
-------

f5b38ec [Debug] fixed class lookup when using PSR-0 with a target dir
Merge branch '2.4' into 2.5

* 2.4:
  [Debug] fixed class lookup when using PSR-0 with a target dir
  fixed standalone tests
  fixed standalone tests
  [Validator] fixed component standalone tests
  fixed standalone component tests depending on Validator and Form
  fixed some composer.json to make standalone component tests pass
  [SecurityBundle] fixed tests when used in standalone

Conflicts:
	src/Symfony/Component/HttpKernel/Tests/Bundle/BundleTest.php
	src/Symfony/Component/Validator/composer.json