Fixing numeric with latest ExtPreAlloc

configure.ac

src/Equations/stoke_flow_eq_3d.hpp

src/FiniteDifference/FDScheme.hpp

src/FiniteDifference/eq.hpp

src/Makefile.am

src/Matrix/SparseMatrix.hpp

src/Matrix/SparseMatrix_Eigen.hpp

src/Matrix/SparseMatrix_petsc.hpp

src/Matrix/SparseMatrix_unit_tests.hpp

src/Operators/Vector/vector_dist_operators.hpp

src/Operators/Vector/vector_dist_operators_apply_kernel.hpp

.../Vector/vector_dist_operators_apply_kernel_unit_tests.hpp

src/Operators/Vector/vector_dist_operators_functions.hpp

src/Operators/Vector/vector_dist_operators_unit_tests.hpp

src/Solvers/petsc_solver.hpp

src/Solvers/umfpack_solver.hpp

src/Vector/Vector.hpp

src/Vector/Vector_petsc.hpp