Resolves #103 with integration refactor

Allocate all voxels before integration and garbage once after

applications/reconstruct/src/voxel_scene.cpp

@@ -133,7 +133,7 @@ void SceneRep::integrate() {
 		//volumetrically integrate the depth data into the depth SDFBlocks
 		_integrateDepthMap(cam.gpu, cam.params);
 
-		_garbageCollect(cam.gpu);
+		//_garbageCollect(cam.gpu);
 
 		m_numIntegratedFrames++;
 	}