Use Android renderscript rather than support v8 renderscript.

Author: emersoncloud

blurkit/src/main/java/com/alterac/blurkit/BlurKit.java

@@ -4,27 +4,27 @@
 import android.graphics.Bitmap;
 import android.graphics.Canvas;
 import android.graphics.Matrix;
-import android.support.v8.renderscript.Allocation;
-import android.support.v8.renderscript.Element;
-import android.support.v8.renderscript.RenderScript;
-import android.support.v8.renderscript.ScriptIntrinsicBlur;
 import android.view.View;
+import android.renderscript.Allocation;
+import android.renderscript.Element;
+import android.renderscript.RenderScript;
+import android.renderscript.ScriptIntrinsicBlur;
 
 public class BlurKit {
 
     private static final float FULL_SCALE = 1f;
 
     private static BlurKit instance;
 
-    private RenderScript rs;
+    private static RenderScript rs;
 
     public static void init(Context context) {
         if (instance != null) {
             return;
         }
 
         instance = new BlurKit();
-        instance.rs = RenderScript.create(context);
+        rs = RenderScript.create(context);
     }
 
     public Bitmap blur(Bitmap src, int radius) {