Minor changes

Tried to unify style a little bit.

In particular, I've removed instances of `write-host`. Unless there was a conscious reason to use it, it should always be avoided.

http://www.jsnover.com/blog/2013/12/07/write-host-considered-harmful/
These two lines are not showing now?
![screen shot 2014-08-27 at 3 31 11 pm](https://cloud.githubusercontent.com/assets/1690993/4068525/ded328d2-2e39-11e4-8376-f4c9fd383ee8.png)