polishing

- code output commented to prevent warnings
- pipe character omitted in circuit text output
Merge branch 'master' of github.com:petrs/EACirc
categories evaluator coefficients decreasing fitness

- decreases fitness when exoected frequency <=5
categories evaluator changes

- sum member is not considered if e_i <= 5
- categories under threshold are considered only in e_i
p-value as fitness, bugfix, replacement_size in cofig

- utility function for p-values added to commonfnc
- replacement size moved to config (+consistency check)
- bug with no mutation in last layer fixed
- categories evaluator uses 1-(p-value) as fitness
chi^2 -> p-value funcion, 2sample chi^2

- new chi^2 conversion function (+comments, +sources)
- CategoriesEvaluator now uses two-sample Chi^2
win compiling compatibility

- added macro for PI constant, if not defined
evolution off mode bugfixes

- evolution-off mode now working
- had to make GAstat a public attribute :-(
histograms output hack

- histograms are outputted in file
- solution uses ugly hack
- to be undone in the future