Update styling of dashboard.

IPython/html/static/style/ipython.min.css

@@ -37,10 +37,12 b' div.traceback-wrapper{text-align:left;max-width:800px;margin:auto}'
 .list_container>div{border-bottom:1px solid #ababab}.list_container>div:hover .list-item{background-color:#f00}
 .list_container>div:last-child{border:none}
 .list_item:hover .list_item{background-color:#ddd}
+.list_item a{text-decoration:none}
+.list_item .span12{padding:5px}
 .item_name{line-height:24px}
+.item_icon{font-size:14px;color:#5e5e5e;margin-left:5px;margin-right:8px}
 .list_container>div>span,.list_container>div>div{padding:8px}
-.list_item a{text-decoration:none}
-input.nbname_input{height:15px}
+input.nbname_input{height:15px;margin:0}
 .highlight_text{color:#00f}
 #project_name>.breadcrumb{padding:0;margin-bottom:0;background-color:transparent;font-weight:bold}
 input.engine_num_input{height:20px;margin-bottom:2px;padding-top:0;padding-bottom:0;width:60px}

IPython/html/static/style/style.min.css

@@ -1314,10 +1314,12 b' span#login_widget{float:right}'
 .list_container>div{border-bottom:1px solid #ababab}.list_container>div:hover .list-item{background-color:#f00}
 .list_container>div:last-child{border:none}
 .list_item:hover .list_item{background-color:#ddd}
+.list_item a{text-decoration:none}
+.list_item .span12{padding:5px}
 .item_name{line-height:24px}
+.item_icon{font-size:14px;color:#5e5e5e;margin-left:5px;margin-right:8px}
 .list_container>div>span,.list_container>div>div{padding:8px}
-.list_item a{text-decoration:none}
-input.nbname_input{height:15px}
+input.nbname_input{height:15px;margin:0}
 .highlight_text{color:#00f}
 #project_name>.breadcrumb{padding:0;margin-bottom:0;background-color:transparent;font-weight:bold}
 input.engine_num_input{height:20px;margin-bottom:2px;padding-top:0;padding-bottom:0;width:60px}

IPython/html/static/tree/less/tree.less

@@ -48,19 +48,23 b''
   &:hover .list_item {
     background-color: #ddd;
   };
+  a {text-decoration: none;}
+  .span12 {padding: 5px;}
 }
 
 .item_name {
     line-height: 24px;
 }
 
-.list_container > div > span, .list_container > div > div {
-  padding: 8px;
+.item_icon {
+    font-size: 14px;
+    color: darken(@border_color, 30%);
+    margin-left: 5px;
+    margin-right: 8px;
 }
 
-
-.list_item a {
-    text-decoration: none;
+.list_container > div > span, .list_container > div > div {
+  padding: 8px;
 }
 
 .profile_col {
@@ -77,6 +81,7 b''
 
 input.nbname_input {
     height: 15px;
+    margin: 0px;
 }
 
 .highlight_text {