Printed text doesn't Wrap at Max Width

# Expected Behavior

Text Should Wrap when specified max width is reached
# Current Behavior

Text Doesn't Wrap, keeps going
# Failure Information (for bugs)

No Erros
## Steps to Reproduce

1.Read Image
2. Print Text on Image Specifying Max Width
3. Save Image

```
let image = {};
return Jimp.read('app/background.png')
.then(imageResponse => {
// Image is 500 x 500
image = imageResponse
return Jimp.loadFont(Jimp.FONT_SANS_64_BLACK);
})
.then(font => {
return image.print(font, margin, margin, 'Very Long Hello WOrld Text', 200)
})
.then(image => {
return image.writeAsync(`app/new-${(new Date()/1000)}.png`);
})
```

IF YOUR ISSUE DEPENDS ON A PARTICULAR IMAGE BE SURE TO INCLUDE THIS AS WELL. WE CAN'T REPORDUCE IF WE DON'T HAVE YOUR IMAGE

**Screenshots**

## Context

- Jimp Version: 0.6.0
- Operating System: Mac Mojave
- Node version: 7

## Failure Logs