Release Camunda Modeler v3.7.1

Release Camunda Modeler v3.7.1:

• make sure dependencies are released (rm -rf node_modules && npm i && npm run all works)
  • bpmn-js, dmn-js, cmmn-js, *-properties-panel, *-moddle, …
• close all issues which are solved by dependency updates
• smoke test to verify all diagrams can be created
• update CHANGELOG
• semantic release (npm run release), cf. release schema
• wait for Travis to build the release
• prepare a list of what was changed or needs to be tested
• execute integration test, verifying fixed things are actually fixed
• [optional] trigger QA for fuzzy testing
• publish release on Github Releases
• trigger mirroring of release to https://camunda.org/release/camunda-modeler/ via Jenkins
• update download version of Camunda Modeler at camunda.com
• add new version to updates-server releases JSON file. Merge this file to master/live branches.
• close current milestone

[philippfromme]

Works on Windows. 👍

[barmac]

Released! 🎉