Restyle toggle info buttons to not look like buttons.

This "tries" to address the issue mentioned by @onli and @ophian in
the latest dev talk with these buttons being too "chunky". Let me
know if you think this is sufficient, guys.

templates/2k11/admin/style.css

@@ -729,6 +729,26 @@ button[type="submit"]:focus {
     text-shadow: #050505 0 1px 1px;
 }
 
+.toggle_info,
+.toggle_info:visited,
+.toggle_info:hover,
+.toggle_info:focus,
+.toggle_info:active {
+    background: transparent;
+    border: 0 none;
+    margin: 0 0 0 .4em;
+    padding: 0;
+}
+
+.toggle_info > .icon-info-circled:before {
+    color: #888;
+}
+
+.toggle_info:hover > span:before,
+.toggle_info:focus > span:before {
+    color: #222;
+}
+
 input[type="date"],
 input[type="datetime"],
 input[type="datetime-local"],