Unified text output

I have turned NLP/NSP/GLP solvers to show unified text output. That one can be edited by user (I'll publish detailed description in OO Doc page ASAP).

Now it's like this for constrained problems:

iter    objFunVal    log10(maxResidual) 
   0  6.115e+01               2.13
  10  2.360e+01               0.72
  20  1.754e+01               0.38
..........
1290  2.015e+01              -6.23

and like this for unconstrained (or those problem-solver pairs which always have feasible iter points, for example some box-bounded problems and solvers):

iter    objFunVal 
   0  -2.825e+06
  10  -7.106e+05
...
1570  -4.787e-03