NLU Train UI

[naveed92]

Simple UI to interactively use the search system #4 , view extracted intents and entities, matched search settings and search results.

Should have a button to input current query to training dataset with specified intents and entities.
Also need "train" button to retrain model with added examples.

[sndyuk]

http://temporary-aic-1040335316.ap-northeast-1.elb.amazonaws.com/rasa/