Improve renderscript context teardown.  Track object in the system and then force their cleanup by releasing all user references once destroy context is called.  Java layer will no longer send destroy notifications for objects garbage collected once a context is destroyed.
diff --git a/libs/rs/rsComponent.h b/libs/rs/rsComponent.h
index 5856524..290cd57 100644
--- a/libs/rs/rsComponent.h
+++ b/libs/rs/rsComponent.h
@@ -44,7 +44,7 @@
     };
 
 
-    Component(DataKind dk, DataType dt, bool isNorm, uint32_t bits, const char *);
+    Component(Context *rsc, DataKind dk, DataType dt, bool isNorm, uint32_t bits, const char *);
     virtual ~Component();
 
     DataType getType() const {return mType;}
@@ -66,7 +66,7 @@
     String8 mName;
 
 private:
-    Component();
+    Component(Context *rsc);
 };