SLAPP3 with several improvements, look at HISTORY.md

From HISTORY.md

(2019 08 07)
3.3.2
improvements in random number generation, look at Section "A note on random
number generation" in the SLAPP_Reference_Handbook.pdf file
(2019 08 11)
3.3.3
a new way to input the parameters, look at Section "An option: adopting the INI
file format for parameter input" in the SLAPP_Reference_Handbook.pdf file
(2019 08 16)
3.3.4
introducing the capability of managing subfolders (within the project folders,
with path of any length), containing the files specifying the agents' classes;
look at Section "Having agent classes in subfolder: the project
basic2classesPathsToTypes"