Amfphp 2.2.1 released

Silex Labs is proud to present an update to [Amfphp](https://www.silexlabs.org/amfphp/

• The client generator now generates code with typed parameters. No Value Objects yet, but strings, booleans and some number formats are supported.
• The Back Office has been reworked to provide more robust error handling and better information when errors happen
• The profiler now supports Flex messaging
• The API reference is now included in the distribution