radar/forem — pull request #473 by tigercat (2013-09-12 23:32:57+00:00)
Title: Identify hidden topics in administrator's view

It's helpful for administrators to see which topics are hidden and which are not when looking at a forum. Otherwise,
one has to click into each topic to see whether it is hidden.

Added a span with classes "hidden" and "icon" to the topic partial, which is added to the topic view when the topic is hidden. Using this span, one can create an icon in a topics view to identify hidden topics.