Supporting the full PNL expression.
Updated default parameters.
Added DoubleNL, updated default paramters and  made objective function a command line option.
Added NL plotting script, together with current objective function.
Update README.md
Saving objective function in output net files.
Merge branch 'devel'
Fixed options saving in net file.
Bugfixes for parameter loading. Added suppressPrinting option.
Added "-noplot" and "-reportEvery" options.
Added command line options for setting gaussian weight and bias means and standard deviations.
Added command line option -nl for setting the non-linearity layer.
Added CV split tools.
Functional k-fold cross validation splitting tool.
Saved extra information in the folds
Resampling datasets to solve class inballance problem.
Regression demos have been renamed.
Changed common file for regression demos.
Added indexes of fold boundaries.
cvsplit output dataset files.