Create non linear system to have a system that return the values of

unknowns and not their increments. Works with GMM Taucs and PETSc. clean
the staticDofManager (there is no umap anymore)

Solver/dofManager.h

@@ -178,7 +178,7 @@ class dofManager{
     if (ghosted.find(key) != ghosted.end()) return;
     ghosted[key] = procId;
   }
-  virtual inline void numberDof(Dof key) // derived in staticDofManager in NonLinearSolver project
+  inline void numberDof(Dof key)
   {
     if (fixed.find(key) != fixed.end()) return;
     if (constraints.find(key) != constraints.end()) return;

Solver/linearSystemGMM.h

@@ -17,9 +17,11 @@
 
 template <class scalar>
 class linearSystemGmm : public linearSystem<scalar> {
+ protected:
+  std::vector<scalar> *_x; // the nonLinearSystemGmm has to access to this vector
  private:
   gmm::row_matrix<gmm::wsvector<scalar> > *_a;
-  std::vector<scalar> *_b, *_x;
+  std::vector<scalar> *_b;
   double _prec;
   int _noisy, _gmres;
  public: