Add exercise one
Use 'price' instead of 'amount'
Fix test description
Add exercise two
Add third exercise
Expect string keys
Add fourth exercise
Split mass expectations up
Use string keys and hash rocket to be consistant with output of JSON parse
String keys only, and correct keys only!
Add some teaching methods to make errors less cryptic
Remove exercise three

Turns out, it was suprisingly evil
Illustrate that tests refer to methods, Improve run order of persistance tests
Tidy up describe blocks
Merge pull request #29 from brrygrdn/exercises-for-event

Exercises for event