Changed ImageBasedHeightMap to use ImageRaster.create() instead of JmeSystem

git-svn-id: https://jmonkeyengine.googlecode.com/svn/trunk@10026 75d07b2b-3a1a-0410-a2c5-0572b91ccdca

engine/src/terrain/com/jme3/terrain/heightmap/ImageBasedHeightMap.java

@@ -98,7 +98,7 @@ public class ImageBasedHeightMap extends AbstractHeightMap implements ImageHeigh
     }
     
     protected ImageRaster getImageRaster() {
-        return JmeSystem.createImageRaster(colorImage, 0);
+        return ImageRaster.create(colorImage);
     }
     
     public boolean load(boolean flipX, boolean flipY) {