Improve release checklist and build_bundle script.
Move logger up to be available sooner.
Only ensure server if we are running the app.

This code reorder avoids to get an error message if we run some code
when the only thing we want is to get the version.

Closes #3914.
Merge remote-tracking branch 'ivan-github/bug/3914_unhandled-error-on-version-flag' into develop
Merge remote-tracking branch 'ivan/feature/improve-release-doc-script' into develop
Fix repo name, remove whitespace.
Add comments, refactor code, use latest tag.

Improve documentation of the script regarding its usage.
Support different tags in the needed repositories and use latest tag for
each one.
Refactor code to be more readable.