VTK-2429 - move AJAX error XHR, textstatus inside server facade
VTK-2429 - move AJAX error XHR, textstatus inside server facade

vtkio/vtk,vtkio/vtk,vtkio/vtk,vtkio/vtk,vtkio/vtk,vtkio/vtk,vtkio/vtk,vtkio/vtk