Using local configuration in only place.

Before we had to change some config variables in several places and
DATA_ROOT is hardcoded to project data directory - not config
import module from_object
put to pyfile absolute path to local config
run tests
extended gunicorn command calling
insert path
config
register blueprints
wsgi
removed ctx_delay. it has been replaced by delay naive method of flask-rq
Get rid of hardcoded DATA_ROOT variable
Put to README travis-ci and Coveralls status
changed xen -> googlefonts