Things to do
DONE <1> Get restaurants and dishes informaion
DONE <2> Setup ElasticSearch and Cassandra
DONE <3> ReactJS Frontend
DONE <4> Main Search with Basic Features
<5> Cloud deploy

UI improve and additional features:
* user add fav dish
* user dish share / user timeline
* historical dish info
* desired historical dish tracker
* new dish at selected restaurant push notice 
* gather pictures for dish
* machine learning dish recommend