Optimize look of big tables in listview

src/css/admin.css

@@ -141,7 +141,7 @@ UL.success  {border-color:#3c3;background-color:#efe;color:#090}
 
 .listview>TABLE {border-spacing:0;border-collapse:collapse;margin-top:30px}
 .listview TR:hover {background-color:rgba(17,108,214,0.3);cursor:default}
-.listview TD {padding:3px 4px 2px 0;font-size:0.85em;opacity:0.5;vertical-align:baseline}
+.listview TD {padding:3px 4px 2px 0;font-size:0.85em;opacity:0.5;vertical-align:baseline;white-space:nowrap;max-width:200px;overflow:hidden;text-overflow:ellipsis}
 .listview TD:first-child {padding-left:5px;font-size:1em;opacity:1}
 .listview TR.active {background-color:#116cd6;cursor:default;color:#fff}
 .listview TR.inactive {text-decoration:line-through;color:rgba(0,0,0,0.3)}