Merge pull request #2 from cporter711/master

Implemented ECLAT
Finding Categorical Frequent Itemsets.
Finding Categorical Frequent Itemsets.
Finding Categorical Frequent Itemsets.
Finding Categorical Frequent Itemsets.
Finding Categorical Frequent Itemsets.
Finding Categorical Frequent Itemsets.
Fixing a bug in leaf assignment
Syncing Master Branches
Removed duplicate sub-categories when parsing csv and added output to eclat and apriori.