Grade for Class 6 Assignment

Good job, Terry.

My overall comments:

- Spaces between operators makes it easier to read :space_invader: 
- Access a single key-value Hash pair with the `[]` method instead of using iteration

#### Exercise 1

- No crashes, works as expected. 4 points

#### Exercise 2

- No crashes, works as expected. 4 points
- Nice solution. :+1: 

#### Exercise 3

- No crashes, but doesn't work as expected. 3 points

```
ruby 3_birthday_helper_read.rb jane
Jane will be 56 on 2014-03-27
```

Instead of

```
ruby 3_birthday_helper_read.rb jane
Jane will be 56 on 2015-03-27
```

#### Exercise 4

- No crashes, works as expected. 4 points

#### Exercise 5

- No crashes, works as expected. 4 points

#### Total

`4 + 4 + 3 + 4 + 4 = 19`