added admin groups and working user deletion, etc.

src/components/Recorders.vue

@@ -747,8 +747,7 @@
                                 this.tabIndex = 0;
                             });
                     }).catch((error) => {
-                        console.error("could not safe recorder! ("+error.data+")");
-                    this.$parent.showErrorMessage('Could not safe recorder!');
+                        EventBus.$emit('errorMessage', 'Could not safe recorder: '+error.data.message+'!');
                 });
             },
             deleteRecorder(id) {