finish ask module

Gemfile

@@ -64,6 +64,7 @@ gem 'rmmseg-cpp-huacnlee', '0.2.9'
 gem 'redis-namespace'
 gem 'redis-search'
 gem 'syslog-logger'
+gem "recaptcha", :require => "recaptcha/rails"
 
 # Gems used only for assets and not required
 # in production environments by default.