Update comment on how to get access token credentials
Merge pull request #3 from sachu/master

Update comment on how to get access token credentials in twitterstream.py
Reduced dna.json and made matrix.json sparse
Reduced order records.json
restructure directory and tweaked asymmetric friendships
Massively reduced books.json
Merge remote branch 'upstream/master'
Solving all of assignment 2
Add script to recreate all *.txt solutions