exercism/exercism.io — pull request #1456 by jessabean (2014-03-04 05:13:59+00:00)
Title: Sidebar overflow

Fixes 2 bugs in the sidebar:

* When a user had many notifications, the list overflowed out of the sidebar area
* The "Delete all read notifications" link was floating out of place

This PR adds a scrollbar to the sidebar when the notifications list is longer than the content area, and puts the delete notifications link back in its proper place.