Update latest_version to 4.3.5

Author: xuwei-k

config.rb

@@ -61,7 +61,7 @@
 I18n.enforce_available_locales = false
 
 # Latest versions
-@latest_version = "4.3.2"
+@latest_version = "4.3.5"
 @latest_play_support_version = "3.0.0-scalikejdbc-4.2"
 @v2_play_support_version = "2.5.1"
 @v2_version = "2.5.2"