still working on travis file (vtk not installed if dependencies are not necessary)
still working on travis file (vtk not installed if dependencies are not necessary)

carolFrohlich/nipype,mick-d/nipype,mick-d/nipype,carolFrohlich/nipype,carolFrohlich/nipype,mick-d/nipype,mick-d/nipype,carolFrohlich/nipype