Propagate templatization of P2PParticleContainer to new test.

Tests/Kernels/testBlockedTree.cpp

@@ -295,7 +295,7 @@ public:
 int main(int argc, char* argv[]){
     static const int P = 9;
     typedef FRotationCell<P>               CellClass;
-    typedef FP2PParticleContainer          ContainerClass;
+    typedef FP2PParticleContainer<>          ContainerClass;
 
     typedef FSimpleLeaf< ContainerClass >                     LeafClass;
     typedef FOctree< CellClass, ContainerClass , LeafClass >  OctreeClass;