Fixed SpotLight constructor to properly compute the invSpotRange see #563

Author: Nehon

jme3-core/src/main/java/com/jme3/light/SpotLight.java

@@ -102,7 +102,7 @@ public SpotLight(Vector3f position, Vector3f direction, float range) {
         this();
         setPosition(position);
         setDirection(direction);
-        this.spotRange = range;
+        setSpotRange(range);
     }
 
     /**
@@ -133,7 +133,7 @@ public SpotLight(Vector3f position, Vector3f direction, float range, ColorRGBA c
         computeAngleParameters();
         setPosition(position);
         setDirection(direction);
-        this.spotRange = range;
+        setSpotRange(range);
     }
 
     /**
@@ -158,7 +158,7 @@ public SpotLight(Vector3f position, Vector3f direction, float range, ColorRGBA c
         computeAngleParameters();
         setPosition(position);
         setDirection(direction);
-        this.spotRange = range;
+        setSpotRange(range);
     }