Fix padding issue with toggle actions

Another Ben W design request. The padding on toggle buttons was slightly off, this change resolves that but also cleans up the actions file a bit. Mostly just documenting the different types of actions/buttons we have available.

**Before:**
![screen shot 2014-12-30 at 15 11 46](https://cloud.githubusercontent.com/assets/123386/5579700/cfbd0ca0-9036-11e4-8521-bccbee2c0d2e.png)

**After:**

After screenshot includes main actions too as a reference as this update changes the way that the arrow is aligned.

![screen shot 2014-12-30 at 15 11 19](https://cloud.githubusercontent.com/assets/123386/5579701/d0c7b33e-9036-11e4-8b7e-68cf283826df.png)

Also fixes a layout regression in the events listing:

**Before**
![screen shot 2014-12-30 at 15 17 28](https://cloud.githubusercontent.com/assets/123386/5579812/85b4e2d4-9038-11e4-8947-9380137bd7e8.png)

**After**
![screen shot 2014-12-30 at 15 28 43](https://cloud.githubusercontent.com/assets/123386/5579815/8d9c5874-9038-11e4-83f7-22741c1d437b.png)