allow simulated annealing warning in termination

[altafang]

Simulated annealing termination originally comes with a warning. How does one integrate that with mystic termination? original code:

if all(abs((af-af[0])/af[0]) < feps):

if abs(af[-1]-best_state.cost) > feps*10:

print "Warning: Cooled to %f at %s but this is not" \

% (squeeze(last_state.cost), str(squeeze(last_state.x))) \ + " the smallest point found."

break

Mystic simulated annealing so far here:  http://dev.danse.us/trac/mystic/browser/branches/alta/mystic-0.1a2/mystic/anneal_solver.py