Updates to Assignments 2.2 and 3

I revised my logic on Assignment 2 to make the code more efficient.
In assignment 3 I updated the parameters for my class and changed the isDead() to have some age parameters and return true if the person has no age or an age less than 0 and false if the age is greater than 0 and less than 111. If the age is greater than 111 I set a return that it is statistically improbable. I wanted to account for something where the age is greater than the currently oldest living person in US.