Fix for KSPGetResidualHistory in SolverDDM (change from new petsc version)

solver/SolverDDM.cpp

@@ -180,7 +180,7 @@ void SolverDDM::solve(void){
 
   // Solve, Get History and Delete Solver //
   KSPSolve(solver, b, x);
-  KSPGetResidualHistory(solver, &hist, &nHist);
+  KSPGetResidualHistory(solver, NULL, &nHist);
 
   PetscBarrier(PETSC_NULL);
   KSPDestroy(&solver);