Finds error messages outside of input-group if input-group is used.

javascript/src/Element/FormGroup.js

@@ -44,7 +44,11 @@ QfqNS.Element = QfqNS.Element || {};
         this.$formGroup = this.$findFormGroup($enclosedElement);
         this.$element = this.$formGroup.find(elementSelector);
         this.$label = this.$formGroup.find('.control-label');
-        this.$helpBlock = this.$formGroup.find(".help-block");
+        if (this.$formGroup.hasClass(".input-group")) {
+            this.$helpBlock = this.$formGroup.parent().find(".help-block");
+        } else {
+            this.$helpBlock = this.$formGroup.find(".help-block");
+        }
     };
 
     /**