TST: Add libvtk5-dev to the apt-get installs to possibly enable
TST: Add libvtk5-dev to the apt-get installs to possibly enable

FrancoisRheaultUS/dipy,StongeEtienne/dipy,StongeEtienne/dipy,matthieudumont/dipy,FrancoisRheaultUS/dipy,matthieudumont/dipy,JohnGriffiths/dipy,JohnGriffiths/dipy,nilgoyyou/dipy,villalonreina/dipy,nilgoyyou/dipy,villalonreina/dipy