0.3.0

• Added more supporting documentation and examples for processors
• Require explicit parameter values if no default value is available for the Constructor Resolver: provides a safety net when calling native Php constructors as Reflection cannot get default param values for those (see https://bugs.php.net/bug.php?id=50798)
• Added support for processors at the handler level
• Minor ReadMe updates: better doc for processors + fixed typo