maestro: SMS_URL renamed to YA_SMS_URL, ship addresses moved to env
maestro/test.yaml: removed gns-reinit
removed main() from modules
removed excessive run-tests.sh
Dockerfile: use nikicat/ubuntu-pypy3 as base
tests: init logging in setUp
maestro: ship addresses and image names moved to env files
remove run-tests.py from .travis.yml
Merge pull request #83 from nikicat/master

code cleanup and maestro refactoring