CMD++ v1.3.1

This is a pretty big release with 2 new commands, system and clear history. System is my take on "Neofetch", Clear history simply clears the history file. Behind the scenes, there has been some cleanup work done and there is more to come. As always, refer to the github wiki page if more information is needed!

There has also been quite a bit of work done on the scripting language that should be released in not too long!