[FrameworkBundle] added configuration interface check

Added check for ConfigurationInterface to config ref dumping
command. To ensure that configuration implements needed
`getConfigTreeBuilder()` command
[Form] Camelize 'add' and 'remove' methods in the PropertyPath

This issue camelizes the 'add' and 'remove' methods,
as it is already done with the 'set' method.
This fixes a problem with properties like 'custom_messages',
where the 'add' and 'remove' methods are 'addCustom_message'
and 'removeCustom_message' instead of 'addCustomMessage'
and 'removeCustomMessage'.
[Templating] Use LoaderInterface instead of abstract Loader in ChainLoader
merged branch chEbba/templating-chain-loader-interface (PR #4676)

Commits
-------

10e0b0b [Templating] Use LoaderInterface instead of abstract Loader in ChainLoader

Discussion
----------

[Templating] Use LoaderInterface instead of abstract Loader in ChainLoader

There is no code in ChainLoader required an instace of Loader class. All wiil be applicable for any LoaderInterface instance. This commit removes such limits.

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by travisbot at 2012-06-28T12:55:25Z

This pull request [fails](http://travis-ci.org/symfony/symfony/builds/1729112) (merged 10e0b0b2 into e8c0e078).
merged branch acasademont/camelize_property_path_add_and_remove_methods (PR #4673)

Commits
-------

9fabb3d [Form] Camelize 'add' and 'remove' methods in the PropertyPath

Discussion
----------

[Form] Camelize 'add' and 'remove' methods in the PropertyPath

Bug fix: yes
Feature addition: no
Backwards compatibility break: yes
Symfony2 tests pass: [![Build Status](https://secure.travis-ci.org/acasademont/symfony.png?branch=camelize_property_path_add_and_remove_methods)](http://travis-ci.org/acasademont/symfony)
Fixes the following tickets: -
License of the code: MIT
Documentation PR: -

This issue camelizes the 'add' and 'remove' methods, as it is already done with the 'set' method.
This fixes a problem with properties like 'custom_messages', where the 'add' and 'remove' methods are 'addCustom_message' and 'removeCustom_message' instead of 'addCustomMessage' and 'removeCustomMessage'.

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by acasademont at 2012-06-27T18:16:36Z

Seems the tests are failing due to some unrelated test in PHP 5.3.14 and PHP 5.4. PHP 5.3.3 works fine

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by travisbot at 2012-06-27T18:38:39Z

This pull request [fails](http://travis-ci.org/symfony/symfony/builds/1722847) (merged 9fabb3dc into d0e15472).
merged branch everzet/config-interface-check (PR #4659)

Commits
-------

d4a0988 [FrameworkBundle] added configuration interface check

Discussion
----------

[FrameworkBundle] added configuration interface check

Added check for ConfigurationInterface to config ref dumping
command. To ensure that configuration implements needed
`getConfigTreeBuilder()` command

---------------------------------------------------------------------------

by travisbot at 2012-06-26T09:19:03Z

This pull request [passes](http://travis-ci.org/symfony/symfony/builds/1708744) (merged d4a09881 into d131f9d3).