Get rid of global keyword #29
Aer is fully OOP language. All class attributes can be accessed by $this keyword or by scope resolution operator (::). It will be impossible to declare a function or variable in global scope, thus there is no need for global keyword. We can safely remove it from PH7 Engine.
Deleting a branch is permanent. Although the deleted branch may continue to exist for a short time before it actually gets removed, it CANNOT be undone in most cases. Continue?