[Serializer] Allow options to be passed to SerialiizerInterface#serialize and #unserialize. Thsee options are available to all encoders/decoders/normalizers that implement SerializerAwareInterface.
Fix CS issues, removed global options
Rename $options to $context, as it makes the intent much more clear.
Added context to JsonEncoder
Update src/Symfony/Component/Validator/Mapping/ClassMetadata.php

getValue() is deprecated since version 2.2 and will be removed in 2.3. Use getPropertyValue() instead.

ClassMetadata is still using the deprecated method, changed it to getPropertyValue to prevent a trigger error.
[Validator][Constraints] CollectionValidator
Remove getPropertyPath in the tests
[Validator][Constraints] Update AllValidator using new Validator API
Change deprecated Min constraint to Range constraint
Remove custom error handler for deprecations
Change deprecated Min and Max constraint
Remove custom error handler for deprecations
bumped Symfony version to 2.0.23-DEV
bumped Symfony version to 2.1.8-DEV
[Yaml] fixed #6770
[Yaml] fixed #6773
merged branch ezzatron/yaml-block-chomping (PR #6785)

This PR was merged into the 2.0 branch.

Commits
-------

ab0385c [Yaml] fixed #6773

Discussion
----------

[Yaml] fixed parsing of blocks with 'keep' chomping indicators (2.0 branch)

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | #6773
| License       | MIT
| Doc PR        | n/a

Also added a full set of tests for all combinations of literal/folded blocks and strip/clip/keep chomping indicators in both mid-file and end-of file positions.
merged branch ezzatron/yaml-negative-integers (PR #6784)

This PR was merged into the 2.0 branch.

Commits
-------

fea20b7 [Yaml] fixed #6770

Discussion
----------

[Yaml] fixed parsing of negative integers (2.0 branch)

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | #6770
| License       | MIT
| Doc PR        | n/a

Note that an unrelated test fixture for large integers had to be changed to work on systems with 64-bit integer support because of the change from `assertEquals()` to `assertSame()`. Please see the diff for clarification.
[Yaml] fixed ignored text when parsing an inlined mapping or sequence (closes #6786)
[FrameworkBundle] fixed Client::doRequest that must call its parent method (closes #6737)