unify number of epochs for torch 1

reduce epochs in reproduced versions, matching in fixed versions, for torch

change JPEG TO jpeg to prevent inconsistent behavior on case-sensitive systems

fix some comments

update

polish crash isolation in some cases

fix

polish nbspecific buggy and fixed versions

polish others buggy and fixed versions

polish matplotlib and seaborn buggy and fixed versions

polish pandas buggy and fixed versions

polish numpy buggy and fixed versions

polish sklearn buggy and fixed versions

polish torch buggy and fixed versions

polish tensorflow buggy and fixed versions

update