update changelog and version bump

Author: eug-L

tawkto/readme.txt

@@ -4,7 +4,7 @@ Tags: tawk,tawk.to,tawkto,chat,free chat,livechat,chat widget,plugin,chat for we
 Requires at least: 2.7
 Requires PHP: 5.6
 Tested up to: 6.5
-Stable tag: 0.8.3
+Stable tag: 0.8.4
 
 (OFFICIAL tawk.to plugin) Instantly chat with  visitors on your website with the free tawk.to chat widget.
 Website: [http://tawk.to](http://tawk.to)
@@ -69,6 +69,9 @@ Note: You will need a free tawk.to account: [Create one for free here!](https://
 
 == Changelog ==
 
+= 0.8.4 =
+* Fixed PHP dynamic properties deprecation
+
 = 0.8.3 =
 * Supported version bump to 6.5
 

tawkto/tawkto.php

@@ -6,7 +6,7 @@
  * Plugin Name: Tawk.to Live Chat
  * Plugin URI: https://www.tawk.to
  * Description: Embeds Tawk.to live chat widget to your site
- * Version: 0.8.3
+ * Version: 0.8.4
  * Author: Tawkto
  * Text Domain: tawk-to-live-chat
  **/