Open URL automatically, and add inverse to key combo

URL opening! :smile: 

As well, I changed the message just slightly. It now fits within 80 characters, so there's no wrapper on default-sized terminals. As well, I added an `inverse` colouring to the `CTRL + C` shortcut. It's small, but I think it looks sort of neat. If you don't want that though, no worries, I can remove it.

![screen shot 2014-07-09 at 10 49 44 pm](https://cloud.githubusercontent.com/assets/1459603/3534924/2c70e832-07f6-11e4-9f24-8af0ac63ed33.png)