Added admin application

- Manage users
- Manage groups
- Manage logs

static/css/webvirtcloud.css

@@ -154,4 +154,15 @@ p {
 
 .bottom-bar-margin {
     margin-top: 65px;
+}
+
+.thumbnail {
+    padding: 10px;
+}
+
+/* make dropdowns show on hover */
+@media only screen and (min-width: 768px) {
+  .dropdown:hover .dropdown-menu {
+    display: block;
+  }
 }