Merge pull request #89 from nikicat/master

maestro: added nginx instances
docker: uwsgi+nginx
maestro: some renames
Added service dockerfiles
Refactoring: Universal Dockerfile for all PyPy3 services + basic nginx crutchs
maestro: Added https port
Added uwsgi container
Optimized building of the root image
Removed old dockerfiles
Removed tail newline
Reverted maestro/conf-dev.yaml
Renamed test.yaml to conf-testing.yaml
Dockerfile: using tk package instead of tk8.5
Makefile: removed --rm from docker-build targets
Dockerfile: -f is superfluous
Dockerfiles: squashed RUNs
Dockerfile: default value for $GNS_CONFIG
Refactoring: script for building the docker images
docker-build.sh: trap and set -e
Merge pull request #91 from mdevaev/docker-nginx-2

Dockerfiles refactoring, uWSGI image