Bump version number

Author: jkmassel

config/Version.Public.xcconfig

@@ -1,4 +1,4 @@
-VERSION_SHORT=3.1
+VERSION_SHORT=3.1.1
 
 // Public long version example: VERSION_LONG=1.2.0.0
-VERSION_LONG=3.1.0.2
+VERSION_LONG=3.1.1.0

fastlane/Deliverfile

@@ -14,7 +14,7 @@ app_identifier "com.automattic.woocommerce"
 screenshots_path "./promo_screenshots/"
 
 # Make sure to update these keys for a new version
-app_version "3.1"
+app_version "3.1.1"
 
 privacy_url({
   'default' => 'https://automattic.com/privacy/',