add scalatest support and initial tests
Adding the gen-idea plugin
[NM|BL|PK] Solutions to exercises from chapter 2. Introduced spec class.
[NM|BL|PK] New package structure and template for chapter 3
[NM|BL|PK] New package structure and template for chapter 3
new directory structure
[PK] Deleted all and started again to ensure it all sank in.
week 2 finished
merged with pkelly
Merge branch 'pkelly03-master'