… root (jaytaph, fabpot)

This PR was merged into the 2.3 branch.

Discussion
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[filesystem] makeRelativePath does not work correctly from root

| Q             | A
| ------------- | ---
| Bug fix?      | yes/no
| New feature?  | yes/no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | #1234
| License       | MIT
| Doc PR        | #14066, #14067

When using `makeRelativePath`, it returns an incorrect path when trying to fetch an entry from the root:

      $fs->makePathRelative('/foo/bar/baz', '/');

Actual result:

      ../foo/bar/baz

Expected result:

      foo/bar/baz

As we have specified an absolute path, there is no point on having an `..` added. It works, because a root directory has a `..` which points to itself, but it could result in issues when the relative path is actually prefixed or concatted.

Commits
-------

791b124 fixed CS
7bb394e Added separated handling of root paths

This PR was merged into the 2.3 branch.

Discussion
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[Yaml] Fix tests on PHP 7.0.2

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | #1234
| License       | MIT
| Doc PR        | -

Related to https://bugs.php.net/66179 that has been fixed in 7.0.2

Commits
-------

902f6dd [Yaml] Fix tests on PHP 7.0.2

This PR was merged into the 3.0 branch.

Discussion
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[Form] Remove unused private method

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | FormValidatorTest::testMissingConstraintIndex() failed, but not relevant
| Fixed tickets | #1234
| License       | MIT
| Doc PR        | -

In 3.0 there is no reference to the private [indent method](https://github.com/symfony/symfony/blob/3.0/src/Symfony/Component/Form/Form.php#L1149).

There was only [one reference in 2.8](https://github.com/symfony/symfony/blob/2.8/src/Symfony/Component/Form/Form.php#L843), but it has been removed.

Commits
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0fb1664 [Form] Remove unused private method