fix announcement loading failed caused by impression. disable pinyin search.

config/initializers/redis_search.rb

@@ -10,7 +10,7 @@ redis = Redis::Namespace.new("orbit_nccu:redis_search2", :redis => redis)
 Redis::Search.configure do |config|
   config.redis = redis
   config.complete_max_length = 100
-  config.pinyin_match = true
+  #config.pinyin_match = true
   # use rmmseg, true to disable it, it can save memroy
   config.disable_rmmseg = false
 end