Support "callback" on Choice Validator
Merge pull request #270 from sroze/patch-1

Support "callback" on Choice Validator
Merge output parameters

This PR aims to merge parsed output parameters instead of overriding, which causes information loss.
Add support of `All` constraint
Add PostParserInterface to JmsMetadataParser to get ValidatorParser found children parsed.
Merge remote-tracking branch 'origin/patch-2'

Conflicts:
	Extractor/ApiDocExtractor.php