Instantiates the Words object
use words::*;
let wordy = Words::new();
assert_eq!(wordy.words.len(), 0);
Populates the words field of the Words object
use words::*;
let mut wordy = Words::new();
wordy.populate();
assert_ne!(wordy.words.len(), 0);
Grabs a copy of an entry in the words list
use words::*;
let mut wordy = Words::new();
wordy.populate();
let word = wordy.get("parenthesis".to_string());
assert_eq!(word, "parenthesis".to_string());
Determines if a word exists in the list
use words::*;
let mut wordy = Words::new();
wordy.populate();
let w0 = wordy.exists("kaleidoscope".to_string());
let w1 = wordy.exists("kaleidescope".to_string());
assert_eq!(w0, true);
assert_eq!(w1, false);