Interactions with sibling tooltips

Allows a tooltip to reflect the copy event

![screen shot 2014-08-12 at 4 35 48 pm](https://cloud.githubusercontent.com/assets/656630/3897272/4bfa3788-2260-11e4-952a-d616d6ba75f7.png)
![screen shot 2014-08-12 at 4 35 55 pm](https://cloud.githubusercontent.com/assets/656630/3897273/4c110602-2260-11e4-90a5-4bb582fd3c83.png)