[PK] - Chapter 5 exercise 1.
    [PK] - Chapter 5 exercises
Finishing chapter 4
Starting Chapter 5 Streams
Starting Chapter 5 Streams
Up to 5.13 in Streams
Completed chapter 5, onto chapter 6!
Completed chapter 5 DONE
Progress on chapter 6
    [PK] - Chapter 5 exercises, start on forall
Initial commit of scala for the impatient exercises
PK - Exercises 5.4 & 5.5
chapter 5/6 exercises
[PK] - Exercises 5,6  from Chapter 6
PK Chapter 6, Exercise 8 - Flatmap
Cheated. The shame.
Added Map2, no cheating
Added Map2, no cheating
[NM] advanced a bit on chapter 7