1) Internal properties and special variables like _this or _time have been moved to a common place. They were scattered in different places without any specific criteria, like VarsContext, SoundSystem or MainSystem
2) MainSystem has been renamed to something more meaningful.
1) Internal properties and special variables like _this or _time have been moved to a common place. They were scattered in different places without any specific criteria, like VarsContext, SoundSystem or MainSystem
2) MainSystem has been renamed to something more meaningful.