[WIP] Modification of armor sort screen

...as described in this thread: http://smf.cataclysmdda.com/index.php?topic=6126

Current progress: 
![cur_status2](https://cloud.githubusercontent.com/assets/5421954/2873851/b28a8b5c-d3c2-11e3-8ee9-08f3d6e8aa7f.png)