Merge branch 'refactoring' into 'master'

backend/README.md

backend/docker-compose.yml

backend/gateway/package-lock.json

backend/gateway/package.json

backend/gateway/src/database.js

backend/gateway/src/index.js

backend/haproxy/haproxy.cfg

backend/projector/.dockerignore

backend/projector/Dockerfile

backend/projector/package-lock.json

backend/projector/package.json

backend/projector/src/database.js

backend/projector/src/index.js

frontend/package-lock.json

frontend/package.json

frontend/src/App.vue