* bschussek/form-extensions:
[Form] Refactored code from CoreExtension to new ValidatorExtension
[Form] Added FormTypeExtensionInterface
[Form] Reorganized code into "form extensions"
The extension classes are now the only constructor argument of the FormFactory class. They replace the existing "type loader" classes.
new FormFactory(array(
new CoreExtension($validator, $storage),
new CsrfExtension($csrfProvider),
new DoctrineOrmExtension($em),
));
Together with a few upcoming commits this mechanism will make
* extension of the form framework in bundles and
* usage of the forms outside of Symfony2
much easier.
