Move the reply toggle inline with share links

This offers a solution to #1518. As the two elements (reply toggle and share actions) are the same height and we know the bottom margins. We can use negative margins to pull the toggle up inline with the share actions.

![screen shot 2014-09-23 at 20 05 24](https://cloud.githubusercontent.com/assets/47144/4377171/38e0ccea-434c-11e4-98e4-dd33386af445.png)