REDCORE-193 [imp] #comment replace confusing icons for publish / unpublish

Before:

![publish_icon-before](https://cloud.githubusercontent.com/assets/1119272/2872490/6f7c3eb8-d364-11e3-8b0f-59047c4757fd.png)

After:

![publish_icon-after](https://cloud.githubusercontent.com/assets/1119272/2872491/72ca8ef8-d364-11e3-99f2-0264211409e1.png)

It also adds `icon-green` & `icon-red` to be able to style it in different colors