Minor Update - Version 1.6b

Possibly the last update ever for this game as the game is nearly 4 years old already. It was mainly to fix a security issue from Unity and I added in a couple quick stuff I could do in an hour or so.

Changelog

• A bunch of minor optimizations.
• Added a text showing the version of the game while in the Settings Menu.
• Fixed a security issue from the version of Unity that was fixed.