Added/moved namespaces in events module

src/modules/events/status_display.cpp

@@ -43,7 +43,10 @@
 #include "status_display.h"
 #include <drivers/drv_led.h>
 
-using namespace status;
+namespace events
+{
+namespace status
+{
 
 StatusDisplay::StatusDisplay(const events::SubscriberHandler &subscriber_handler)
 	: _subscriber_handler(subscriber_handler)
@@ -106,3 +109,6 @@ void StatusDisplay::publish()
 		_led_control_pub =  orb_advertise_queue(ORB_ID(led_control), &_led_control, LED_UORB_QUEUE_LENGTH);
 	}
 }
+
+} /* namespace status */
+} /* namespace events */