Merge pull request #100 from nrobeR/master

(feat) Add user route handlers and user query functions
rebase
(refactor) Fix db connection in user module & cleaned ab test queries
Merge pull request #102 from armandopmj/feat/ABtestingRouts

(feat) Handle new ab testing app query and request
(test) Karma includes all files in client folder
(fix) Karma: remove unnecessary line
(feat) account: Add front-end authentication without testing with backend yet
(fix) Logout redirects to account state
Merge pull request #103 from lmle/feat/client/account/Auth0

(feat) account: Add front-end authentication without testing with backend yet
(feat) completes authentication on the server side
(feat) completes authentication
(feat) connects the server to client