How to make a release

I18N
- make messages look for new strings within the code
- make tx_push to publish new strings to transifex
- translators at work
- make tx_pull to retrieve new translations from transifex
- make compilemessages to create regular .mo + umap/static/umap/locale/*.js
- commit new translations git commit -am "i18n"
Bump version: make patch|minor
git commit -am "1.X.Y"
git tag 1.X.Y
git push && git push --tag
Go to Github release page and Generate release notes + paste it in docs/changelog.md + finish Github process for a new release
Commit the changelog git commit -am "changelog"
make build
make publish
make docker

Deploying instances

Makefile on @yohanboniface computer. TODO: share it :)

Update the Dockerfile with correct version and put a tag YYYY.MM.DD in order to deploy it to production.