S r opt
Now the vdWTkatchenko09prl() class will default to the optimal sR parameter for the chosen functional. It can also take the sR argument (default is sR=None) so that the user can pass whichever value they want and override the default.
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
Now the vdWTkatchenko09prl() class will default to the optimal sR parameter for the chosen functional. It can also take the sR argument (default is sR=None) so that the user can pass whichever value they want and override the default.