silverstripe/silverstripe-framework — pull request #2004 by adrexia (2013-05-25 04:55:47+00:00)
Title: Replace logout button with a more commonly used symbol

* Power icon swapped for door icon
* Minor hover/focus opacity effect added to button

![logout-button](https://f.cloud.github.com/assets/984753/563632/491977bc-c4f7-11e2-8bde-5dd1c3eb222b.png)