Heroku working

Changes so it works on Heroku and uses environment variables instead of hardcoded values

Frontend Angular 4/src/app/shared/services/actioncable.service.ts

 import { Injectable, NgZone } from "@angular/core";
 import * as ActionCable from "actioncable";
+import { GHCI_URL } from "../config";
 
 @Injectable({
   providedIn: "root",
@@ -13,7 +14,8 @@ export class ActionCableService {
     const client = localStorage.getItem("client");
 
     this.consumer = ActionCable.createConsumer(
-      `ws://localhost:3000/cable?uid=${uid}&access-token=${accessToken}&client=${client}`
+      `${GHCI_URL}?uid=${uid}&access-token=${accessToken}&client=${client}`
     );
   }
 }
+``;