engine.rb in onebox-1.2.3

- old
+ new

@@ -110,5 +110,6 @@
 require_relative "engine/stack_exchange_onebox"
 require_relative "engine/twitter_status_onebox"
 require_relative "engine/wikipedia_onebox"
 require_relative "engine/youtube_onebox"
 require_relative "engine/whitelisted_generic_onebox"
+require_relative "engine/pubmed_onebox"