Releasing a new Portofino 5.x version

1. If the 'portofino' Angular library (in the ui directory) has been modified since the previous release, update the version in ui/projects/portofino/package.json, ui/package.json, archetypes/war/src/main/resources/archetype-resources/src/main/frontend/package.json and demo-tt/src/main/frontend/package.json
2. Update Java module versions:
   2.1. mvn versions:set -DnewVersion=5.x.y
   2.2. watch out for modules without Portofino as a parent, such as microservices/spring-boot. You'll have to update these manually.
3. Review CHANGELOG.md
4. mvn -DperformRelease=true clean package deploy
   4.1. Heads up! The build requires that Docker is installed and running.
   4.2. On Linux (Ubuntu) with no GUI (now probably outdated):
   gpg-agent --daemon mvn -Dgpg.executable=gpg2 -DperformRelease=true clean package deploy
5. Publish the Upstairs app on Docker hub:
   5.1. docker login
   5.2. docker tag portofino-upstairs:5.x.y manydesigns/portofino-upstairs (latest tag)
   5.3. docker push manydesigns/portofino-upstairs
   5.4. docker tag portofino-upstairs:5.x.y manydesigns/portofino-upstairs:5.x.y (5.x.y tag)
   5.5. docker push manydesigns/portofino-upstairs:5.x.y
6. From Sonatype https://oss.sonatype.org/#stagingRepositories: download demo-tt and do a quick test (CRUD, wizard)
7. Publish the portofino library to NPM (if modified):

   cd ui
   npm run publish-lib

8. Build and test oneclick:
   8.1. cd oneclick
   8.2. edit local.py
   8.3. ./oneclick.py
   8.4. test app and wizard in build/
9. Close & release Sonatype repository
10. publish to SourceForge:
    10.1. copy oneclick/build/portofino-5.x.y.zip to SourceForge
    10.2. Generate javadoc (command in pom.xml), zip and publish to SourceForge
    10.3. mvn assembly:single, cd target and publish portofino-5.x.y-src.zip and portofino-5.x.y-upstairs.zip to SourceForge
11. commit & tag:

   git commit -am "Update to version 5.x.y"
   git tag -a v5.x.y -m "Version 5.x.y"
   git push origin v5.x.y

12. set next snapshot: mvn versions:set -DnextSnapshot
13. commit & push