Update Spark streaming link in README.md

Add MapR kibana dashboards

Update README.md

Fix docker-compose.yml link in README.md

Twitter OAuth params more explicits in docker-compose.yml

Setup Twitter OAuth settings

Dockerize Elasticsearch, Kibana, Spark & App

Compatible with Spark 1.5.2, Elasticsearch 2.1.1, Kibana 4.3.1

Add License file

Update Kibana dashboard

Add Kibana dashboard configuration

Index more fields in Elasticsearch + Mapping

Use unknown term for un-detected language

Add Elasticsearch RDDs output

Rename sentiment detection method