GetBool with default value of true always returns true

[Jamroah]

SetBool(false) sets an int of 0. GetBool only returns true if GetInt returns 1, or default value, so even if it returns a 0 GetBool with a default value of true will always return true.

Suggest replacing the GetBool function with:

public static bool GetBool(string key, bool defaultValue) {
    int i = GetInt(key, (defaultValue ? 1 : 0));
    return i == 1;
}