GUACAMOLE-220: Add management tab and editor for user groups.

guacamole/src/main/webapp/app/index/styles/lists.css

@@ -18,12 +18,14 @@
  */
 
 .user,
+.user-group,
 .connection-group,
 .connection {
     cursor: pointer;
 }
 
 .user a,
+.user-group a,
 .connection a,
 .connection-group a {
     text-decoration:none;
@@ -31,6 +33,7 @@
 }
 
 .user a:hover,
+.user-group a:hover,
 .connection a:hover,
 .connection-group a:hover {
     text-decoration:none;
@@ -38,6 +41,7 @@
 }
 
 .user a:visited,
+.user-group a:visited,
 .connection a:visited,
 .connection-group a:visited {
     text-decoration:none;

guacamole/src/main/webapp/app/index/styles/ui.css

@@ -156,6 +156,14 @@ div.section {
     background-image: url('images/action-icons/guac-user-add.png');
 }
 
+.icon.user-group {
+    background-image: url('images/user-icons/guac-user-group.png');
+}
+
+.icon.user-group.add {
+    background-image: url('images/action-icons/guac-user-group-add.png');
+}
+
 .icon.connection {
     background-image: url('images/protocol-icons/guac-plug.png');
 }