display branchtag regex when manually invoking build triggers to avoid confusion when multiple triggers

static/js/directives/ui/trigger-description/trigger-description.component.ts

@@ -0,0 +1,20 @@
+import { Component, Input, Inject } from 'ng-metadata/core';
+import { Trigger } from '../../../types/common.types';
+
+
+/**
+ * A component which displays information about a build trigger.
+ */
+@Component({
+  selector: 'trigger-description',
+  templateUrl: '/static/js/directives/ui/trigger-description/trigger-description.component.html'
+})
+export class TriggerDescriptionComponent {
+
+  @Input('<') public trigger: Trigger;
+
+  constructor(@Inject('TriggerService') private triggerService: any,
+              @Inject('KeyService') private keyService: any) {
+
+  }
+}