Updated README.md to correct the display of a tag
Update project
Spout creation
Switched to Twitter Stream API (check README). Test app now retrieve tweets from Rome urban area
Creation of a bolt to filter and a bolt to expand URL
Now the webapp filters Tweets from Rome and with a URL inside
Update of TwitterSpout and ExpanderBolt
Creation of a bolt that counts the domain
Add documental comments.
Trying to merge branches in conflict
Tweets without links don't get in the queue. Duplicate twitter4j dependency removed
Story so far paragraph on README updated
Commit Allineamento
Creazione Topologia
Introduzione topologia