Adding exercises 14 and 15
Fixing typo in Exercise 14
Adding Examples for Lecture 16
Adding exercise #16
Fixing _ on 2nd constructor
Adding Lauris Files
Adding Lecture 17 Examples
Merge branch 'master' of https://bitbucket.org/sathrumlu/pa2sp14
Adding Exercises 17 and 18
Merge branch 'master' of https://bitbucket.org/sathrumlu/pa2sp14
Rob checked in because he's anal-retentive
Rob checked in ex 18 because he's anal-retentive
Rob checked in ex 17 because he's anal-retentive
Rob checked in ex 5 because he's anal-retentive
Initial commit for lab 4