Removed tfidf helpers
Added 20 real data objects for testing purposes
Added +1 to doc.wordcount to account for 0, need to change on scraper, changed tfValue to show 10 decimal places
Added functions within the batch operation that calculates tfidf, vectors and cosine similarity.
Separated tfidf, vector and cosine similarity query into it's own separate function
Created a new file to hold functions that query the database for documents
Added a line in batchOp to test cosine similarity fetcher function
Merge pull request #3 from rawrin/batchOperation