modified:   server/db_user.py
	modified:   server/flask_test.py
	new file:   server/poll.py
	new file:   server/test.py
	modified:   server/user.py

added poll class
added error handling (400, 500)
added post json request retrieval
ban mechs
token handling changed
token sent back to user in json
login via token (still need to check time validity)