Various improvements

skins/elastic/styles/widgets/buttons.less

@@ -91,6 +91,9 @@ button.btn {
     &.remove:before {
         content: @fa-var-close;
     }
+    &.unlock:before {
+        content: @fa-var-unlock;
+    }
 }
 
 button.btn {

skins/elastic/styles/widgets/forms.less

@@ -29,6 +29,17 @@ input.smart-upload {
     &:not(.popupmenu) {
         width: 100%;
     }
+
+    /* This is the way we can have multiple checkboxes in a single form field */
+    .form-check td:not(.title) > label {
+        display: block;
+        margin: 0;
+        line-height: 2rem;
+
+        label {
+            margin-right: .5rem;
+        }
+    }
 }
 
 .propform,

skins/elastic/ui.js

@@ -202,12 +202,7 @@ function rcube_elastic_ui()
                 .appendTo(rcmail.gui_objects.messageform);
 
             $(this).on('change', function() {
-                if (this.type == 'checkbox') {
-                    hidden.attr('checked', $(this).attr('checked'));
-                }
-                else {
-                    hidden.val($(this).val());
-                }
+                hidden.val(this.type != 'checkbox' || this.checked ? $(this).val() : '');
             }).change();
         });