Revert "minor fixes, added the class to append itemset data into itemset"

This reverts commit ab370d883f2a6675e040efdbba22c47ef7e3dc0d.
Revert "Revert "minor fixes, added the class to append itemset data into itemset""

This reverts commit f9725fd5d2acfdeda52fbfb1dfdb7407f2865897.
Merge branch 'master' of https://github.com/labrax/vroth_summerproject2014.git