Improvements to dakota_diff.perl, primarily to ignore small PCE coefficients and Sobol indices that can cause baseline skew.  (A great suggestion by Adam.)
Improvements to dakota_diff.perl, primarily to ignore small PCE coefficients and Sobol indices that can cause baseline skew.  (A great suggestion by Adam.)

Add an additional while loop so we catch repeated UQ output, as in hierarchical UQ, where multiple sets of coeffs, moments, indices are output.  This is incremental, would still miss the output if nested inside another non-vector kind of output.

Minor: 
 * Adjust the regular expression for expoential to group without capture (?:), as without it, we were diffing every value twice.
 * Define regular expressions for a few output matches to easier keep in sync




git-svn-id: d5469d78598a82f75b3d1e6419ce8b4d1ddac974@2902 aa0779c3-6ec2-4b84-a212-a405c134cd8d

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