Auto-updating Scoreboards! Whoooo

Example in action (before skill names got colored):
![s1_start](https://f.cloud.github.com/assets/627891/494133/94cd165a-bb88-11e2-8e9a-a31c92ef5016.png)
![s2_slashexcavation](https://f.cloud.github.com/assets/627891/494134/98c4db62-bb88-11e2-8241-4bf313c5a14f.png)
![s4_abouttoreset](https://f.cloud.github.com/assets/627891/494136/9cd75fae-bb88-11e2-8fbb-df242e9fe4a7.png)
![s5_resetsuccessful](https://f.cloud.github.com/assets/627891/494137/9eaa0d86-bb88-11e2-81ff-0458e787de10.png)


Note how the scoreboard went back to the normal one afterwards.

A new config option was added, `Scoreboards.liveUpdates`, to disable this functionality.