Cleanup install output

I'm not sure that this is desired, but I suppressed some of the less useful output and added some input I was looking for when I first installed.

- There is no more output from curl because both of the things being requested are relatively small in the first place.
- In addition to that I've notified where the script was installed to.

Here's a screenshot:
![screen shot 2014-02-23 at 2 21 24 am](https://f.cloud.github.com/assets/100039/2240093/7da7aecc-9c74-11e3-8f3b-9d2230da3b73.png)

Let me know what you think.