Merge pull request #1027 from jitsi/fix-contact-list-resizing

Some contact list styling adjustments

css/_contact_list.scss

         margin-top: 16px;
         padding: 0px;
         width: 100%;
-        overflow: auto;
     }
 
     .clickable {
         white-space: nowrap;
         color: #FFF;
         font-size: 10pt;
-        padding: 6px 30px;
+        padding: 6px 10%;
 
         &:hover,
         &:active {
             display: inline-block;
             vertical-align: middle;
             margin: 0px;
+            width: 100%;
+            text-overflow: ellipsis;
+            overflow: hidden;
         }
     }
 }