Style refresh

:grimacing: 

I made some style changes, most of them are described in the commit messages, and they should be cherry-pickable if you hate some of them but like some of them.

Happy to discuss/make changes. :sunflower:

Screenshots:

### Homepage

![image](https://cloud.githubusercontent.com/assets/1153134/3794583/2ee84750-1baf-11e4-9c40-97ef5ebb5ffa.png)

### Forms

![image](https://cloud.githubusercontent.com/assets/1153134/3794523/3d603a1e-1bae-11e4-9f55-d428be4614f5.png)

### Buckets

![image](https://cloud.githubusercontent.com/assets/1153134/3794544/78f061a8-1bae-11e4-8138-bcd55e904025.png)

#### Dragging

![image](https://cloud.githubusercontent.com/assets/1153134/3794575/05208fc2-1baf-11e4-8956-e5298f98b925.png)

### Teams

![image](https://cloud.githubusercontent.com/assets/1153134/3794558/c957e896-1bae-11e4-9361-f6ed821f866d.png)

cc @jonmagic @juliamae