Merge pull request #16 from BorisVerk/master

server refactor
adding gunicorn to requirements.txt
test func for postgres sql
added DB boilerplate
testing a postgres db
fixed indentation
Merge pull request #18 from neillobo/feature/postGres

Feature/post gres
fixed syntax
Merge pull request #19 from neillobo/feature/postGres

fixed syntax
fixed sys path to access server.py functions
refactoring
added real unittests
removed soem unnecessary content from test.py
Merge pull request #21 from dhfromkorea/feature/test

added test functions