MMP solver nsmm: constraints have been implemented

constraints handling for MMP (minimax problem) solver nsmm has been implemented.
Here's text and graphical output of the updated mmp example

starting solver nsmm (license: BSD)  with problem  unnamed
Niter      ObjFun      log10(maxResidual)
  0         6.47e+03   1.9
  10        6.45e+03   -1.1
  20        6.46e+03   -3.6
  30        6.46e+03   -5.8
nsmm has finished solving the problem unnamed
istop:  3 (|| X[k] - X[k-1] || < xtol)
Solver:   Time Elapsed = 0.26  CPU Time Elapsed = 0.21
Plotting: Time Elapsed = 3.56  CPU Time Elapsed = 2.99
objFunValue: 6461.0983572120513 (feasible, max constraint =  9.66019e-07)