QObject::killTimers() doesn't exist anymore

Now we have to kill timers individually.

t14/cannon.cpp

@@ -61,7 +61,7 @@ void CannonField::shoot()
     shoot_ang  = ang;
     shoot_f    = f;
     shooting   = true;
-    startTimer( 50 );
+    timerId = startTimer( 50 );
 }
 
 void  CannonField::newTarget()
@@ -170,7 +170,7 @@ void CannonField::mouseReleaseEvent( QMouseEvent *e )
 void CannonField::stopShooting()
 {
     shooting = false;
-    killTimers();
+    killTimer(timerId);
 }
 
 void CannonField::paintShot( QPainter *p )

t14/cannon.h

@@ -55,6 +55,7 @@ private:
     bool  shooting;
 
     int   timerCount;
+    int   timerId;
     float shoot_ang;
     float shoot_f;