heroku redis config tweaks

Author: JPrevost

config/environments/production.rb

@@ -66,7 +66,7 @@
 
   # Use a different cache store in production.
   # config.cache_store = :mem_cache_store
-  config.cache_store = :redis_cache_store, { url: ENV['REDIS_URL'] }
+  config.cache_store = :redis_cache_store, { url: ENV['REDIS_URL'], ssl_params: { verify_mode: OpenSSL::SSL::VERIFY_NONE } }
 
   # Use a real queuing backend for Active Job (and separate queues per environment).
   # config.active_job.queue_adapter = :resque