proposition of modifications for installation and tutorial 1
proposition of modifications for tutorial 2
make the branch clean i.e. only modifications relative to tutorial 2
added test data for cassandra
Merge pull request #108 from montanier/tutorial2

proposition of modifications for tutorial 2
fixes #109
changing dataset
Merge branch 'master' of https://github.com/xrubio/pandora
removing incorrect dataset
fixed size of text
new dataset for testing purposes