transition from internal logger to @slack/logger

package.json

@@ -33,18 +33,16 @@
     "node": ">=8.9.0"
   },
   "dependencies": {
+    "@slack/logger": "^1.0.0",
     "@slack/types": "^1.0.0",
     "@slack/web-api": "^5.0.0",
-    "@types/chalk": "^2.2.0",
     "@types/express": "^4.16.1",
     "@types/node": ">=8",
     "@types/request": "^2.48.1",
     "axios": "^0.18.0",
-    "chalk": "^2.4.2",
     "deap": "^1.0.0",
     "express": "^4.16.4",
     "js-queue": "^1.0.0",
-    "object.entries": "^1.1.0",
     "path-to-regexp": "^2.0.0",
     "querystring": "^0.2.0",
     "raw-body": "^2.3.3",

src/Slapp.ts

@@ -1,6 +1,7 @@
+import util from 'util';
 import { WebClient, ChatPostMessageArguments } from '@slack/web-api';
+import { Logger, LogLevel, ConsoleLogger } from '@slack/logger';
 import { ExpressReceiver, Receiver, Event as ReceiverEvent, ReceiverArguments } from './receiver';
-import { Logger, LogLevel, ConsoleLogger } from './logger'; // tslint:disable-line:import-name
 import {
   ignoreSelfMiddleware,
   ignoreBotsMiddleware,
@@ -14,7 +15,6 @@ import {
   matchMessage,
 } from './middleware/builtin';
 import { processMiddleware } from './middleware/process';
-import util from 'util';
 import { ConversationStore, conversationContext, MemoryStore } from './conversation-store';
 import {
   Middleware,
@@ -133,8 +133,7 @@ export default class Slapp {
     this.middleware = [];
     this.listeners = [];
 
-    // TODO: should we pass the logLevel through? probably not
-    this.client = new WebClient();
+    this.client = new WebClient(undefined, { logLevel });
 
     // Check for required arguments of ExpressReceiver
     if (signingSecret !== undefined) {

src/conversation-store.ts

@@ -1,5 +1,5 @@
 import { Middleware, AnyMiddlewareArgs } from './types';
-import { Logger } from './logger';
+import { Logger } from '@slack/logger';
 import { getTypeAndConversation } from './helpers';
 
 /**