Bump version number

Author: jkmassel

config/Version.Public.xcconfig

@@ -1,4 +1,4 @@
-VERSION_SHORT=8.3
+VERSION_SHORT=8.4
 
 // Public long version example: VERSION_LONG=1.2.0.0
-VERSION_LONG=8.3.0.2
+VERSION_LONG=8.4.0.0

fastlane/Deliverfile

@@ -13,7 +13,7 @@ app_identifier 'com.automattic.woocommerce'
 screenshots_path './fastlane/promo_screenshots/'
 
 # Make sure to update these keys for a new version
-app_version "8.3"
+app_version "8.4"
 
 team_id '299112'
 

fastlane/download_metadata.swift

@@ -3,7 +3,7 @@
 import Foundation
 
 let glotPressSubtitleKey = "app_store_subtitle"
-let glotPressWhatsNewKey = "v8.3-whats-new"
+let glotPressWhatsNewKey = "v8.4-whats-new"
 let glotPressDescriptionKey = "app_store_desc"
 let glotPressKeywordsKey = "app_store_keywords"
 let glotPressPromoTextKey = "app_store_promo_text"