suzerain: increase robustness/chattiness

This permits not falling over when one of the
integrals fails, but also WARN0s when it occurs.

git-svn-id: https://svn.ices.utexas.edu/repos/pecos/suzerain/trunk@43261 0bd85f0b-c151-43b9-a1e9-27231104551f
suzerain: attempt to increase search robustness

git-svn-id: https://svn.ices.utexas.edu/repos/pecos/suzerain/trunk@43262 0bd85f0b-c151-43b9-a1e9-27231104551f