Aligned forecasts and better visualization on different themes.

I made the forecasts display in multiple aligned lines and tweaked the colors so that they come out well in most color themes. First time contributing to something. Hope it's not too trivial. Thanks!

#Dark theme on iTerm2
![dark_ansi_2](https://cloud.githubusercontent.com/assets/3408000/3864925/553bf3c8-1f76-11e4-8989-177b8456b0e1.png)

#Hybrid theme on iTerm2
![hybrid_ansi](https://cloud.githubusercontent.com/assets/3408000/3864910/e6bfab42-1f75-11e4-8e26-db2d6c881a9f.png)

#Light theme on iTerm2
![light_ansi_2](https://cloud.githubusercontent.com/assets/3408000/3864940/96155bc8-1f76-11e4-9206-aa5fa21681ab.png)