• expanded scope of various annotations to class level
• throw exception on invalid message received in the body listener
• fix issues with XML/YAML when using the custom route loader
• refactored format listener to support priorities by media type as well as storing the matched media type in a request attribute on which an optional version listener can match the API version
• drop Symfony 2.1 support
• inject the ViewHandler params to make them dynamically settable
• replaced generic HttpExceptions with more specific subclasses
• fixed some issues when using XML for Bundle configuration
• use willdurand/jsonp-validator in the JSONP support