add .gitignore to research project
add .gitignore to research project

rpiotti/Web-Karma,usc-isi-i2/Web-Karma,usc-isi-i2/Web-Karma,sylvanmist/Web-Karma,usc-isi-i2/Web-Karma,sylvanmist/Web-Karma,usc-isi-i2/Web-Karma,sylvanmist/Web-Karma,rpiotti/Web-Karma,rpiotti/Web-Karma,rpiotti/Web-Karma,usc-isi-i2/Web-Karma,sylvanmist/Web-Karma,sylvanmist/Web-Karma,rpiotti/Web-Karma