Create SentimentalPerDay.js

This js has 2 scripts: SentimentalPerDay( to a certain day) and a list of tweets with sentiment.
'server' variable has Vero instance IP. Once the installation of the proxy of the server is done, 'server' will change to the central IP.
Merge pull request #1 from VeroVasquezVit/master

Create SentimentalPerDay.js