Merge pull request #25 from bethjohnson/master

Adds GrapheneDB
Merge pull request #27 from bethjohnson/master

Fixes 405 bug, modifies parsing of post data. closes #26
Merge pull request #28 from bethjohnson/master

Adds 'PICKS' relationship to database. Closes #19
commit before rebase
updates run.py to work with tuples
adds feature to display drivers after adding a passenger
Merge pull request #29 from teeeg/master

closes #20 #21
Adds Azure neo4j database connection