22-may-2005 NvE Class AliMath extended to provide full distribution functions of...

22-may-2005 NvE Class AliMath extended to provide full distribution functions of several standard
                distributions (e.g. Binomial, Poisson, Gauss) and key statistics (e.g. Chi-squared,
                Student's T, F-test) in view of analysis using Bayesian logic.
                The various distributions are provided as TF1 objects.
                In addition, functions to provide the P-values of the various key statistics are also
                introduced to allow a classical frequentist analysis as well.