[Composer] added a required dependency to symfony/event-dispatcher (Issue #4)
[MR][Composer] added a required dependency to symfony/event-dispatcher (Issue #4)
[Composer] moved symfony/dependency-injection and symfony/http-kernel into the require element
[Composer] updated the required PHP version to >= 5.3.3
[Composer] updated the required version of piece/stagehand-fsm to "~2.1"
[Composer] updated the required version of the Symfony components to "~2.1"
[Composer] updated the "license" element
[Composer] moved the "minimum-stability" element to the location after the "autoload" element
[PageFlow] improved the EventHandler::invokeActionAndTriggerEvent() method
[PageFlow] removed the PageFlow::isActive() method