Basic functionality (50pts)
- be able to play multiple rounds of hangman (10 pts)
- display the correct messages to move the game forward (20 pts)
- keep track of partial guesses and correctly display with upper case letters and dashes (10 pts)
- terminate regardless of whether the user wins. i.e. no infinite loops, etc. (10 pts)

Features (50pts)
- choose random words from built -in list (10 pts)
- implement guesses count correctly: guessing correct letter again does not decrease the count; guessing incorrect letter again decreases the count (20 pts)
- guesses should be accepted either in lower or upper case, even though all letters in the secret words are written in upper case. (5 pts)
-good design of classes and methods (15 pts)

Considerations for all parts
=============================

- Missing header(s) (-5pts)

- Incorrect filename(s) (-5pts)

- Failure to compile (-5 pts minimum; we strongly encourage 
  that you compile and test before submission).

- Inconsistent style. Please read the CT elements of style. We will
give comments on poor style and may take off a reasonable number of
points for poor style.