reworked eventhandler

FlippR-Driver/include/input/InputDriver.h

@@ -8,17 +8,19 @@
 #ifndef SRC_INPUT_IINPUTDRIVER_H_
 #define SRC_INPUT_IINPUTDRIVER_H_
 
+#include "Event.h"
+
 #include <memory>
 
 #include <boost/optional/optional_io.hpp>
 
-#include "input/EventHandler.h"
-
 namespace flippR_driver
 {
 namespace input
 {
 
+class EventHandler;
+
 class InputDriver {
   public:
     virtual ~InputDriver() = default;