new file:   server/database/db_answer.py
	modified:   server/database/db_poll.py
	new file:   server/database/db_response.py
	modified:   server/database/db_tools.py
	modified:   server/database/db_user.py
	modified:   server/flask_test.py
	modified:   server/flask_test.pyc
	modified:   server/logic/poll.py
	modified:   server/logic/user.py

-user can get poll with answers
-reponse and answers db files added
-user can anwser a poll only via POST
-check user params when responding
Merge branch 'master' of https://github.com/TheTwon/iOS_vote

routine merge