fixing output handling of delete-line and beginning-of-line

Now mocha spec reporting finally works!

### Before
![screen shot 2013-07-14 at 5 53 41 pm](https://f.cloud.github.com/assets/112170/795133/a94e89ea-ece0-11e2-98f5-7da2376af612.png)

### After!!!
![screen shot 2013-07-14 at 5 52 50 pm](https://f.cloud.github.com/assets/112170/795129/8be7d1b8-ece0-11e2-8f9c-d7ed21c73d9b.png)