After consultation with Laura, committing updates to TestDriverInterface:: damped_oscillator().  This standardizes on the JCP formulation of  t_final = 20 sec with support for variable field size.  It also excludes the  initial response and includes the final response, which avoids some numerical  issues with the former (not a function of most variables).
After consultation with Laura, committing updates to TestDriverInterface::
damped_oscillator().  This standardizes on the JCP formulation of 
t_final = 20 sec with support for variable field size.  It also excludes the 
initial response and includes the final response, which avoids some numerical 
issues with the former (not a function of most variables).

Laura will update data files and baselines for dakota_experiment_read.in and
dakota_princ_comp.in in the next day or 2.


git-svn-id: d5469d78598a82f75b3d1e6419ce8b4d1ddac974@3539 aa0779c3-6ec2-4b84-a212-a405c134cd8d

pemryan/DAKOTA,pemryan/DAKOTA,pemryan/DAKOTA,pemryan/DAKOTA,pemryan/DAKOTA,pemryan/DAKOTA,pemryan/DAKOTA