fix typo

Author: diaozxin007

wechaty/src/main/kotlin/io/github/wechaty/Wechaty.kt

@@ -37,8 +37,8 @@ class Wechaty private constructor(private var wechatyOptions: WechatyOptions) :
     val contactManager = ContactManager(this)
     val messageManager = MessageManager(this)
     val roomManager = RoomManager(this)
-    val roomInvitationMessager = RoomInvitationManager(this)
-    val imageMessager = ImageManager(this)
+    val roomInvitationManager = RoomInvitationManager(this)
+    val imageManager = ImageManager(this)
 
     init {
 //        this.memory = wechatyOptions.memory
@@ -278,7 +278,7 @@ class Wechaty private constructor(private var wechatyOptions: WechatyOptions) :
                 EventEnum.ROOM_INVITE -> {
                     puppet.on(it, object : PuppetRoomInviteListener {
                         override fun handler(payload: EventRoomInvitePayload) {
-                            val roomInvitation = roomInvitationMessager.load(payload.roomInvitationId)
+                            val roomInvitation = roomInvitationManager.load(payload.roomInvitationId)
                             emit(EventEnum.ROOM_INVITE, roomInvitation)
                         }
                     })

wechaty/src/main/kotlin/io/github/wechaty/user/Message.kt

@@ -291,7 +291,7 @@ open class Message(wechaty: Wechaty,val id: String) : Sayable, Accessory(wechaty
         if(this.type() != MessageType.Image){
             throw Exception("not a image type, type is "+ this.type())
         }
-        return wechaty.imageMessager.create(this.id);
+        return wechaty.imageManager.create(this.id);
     }
 
     fun toContact():Contact{