Release 0.2.0

Release candidate 2 for release 0.2.0

Fix not working release system

Release candidate 1 for release 0.2.0

Fix a bug in the release chain of the CD-pipeline

First release candidate for release 0.2.0

Add early failure report to the CI

The download step never failed and it was hard to debug what happen
and why a specific command failed during the configure or build
steps.
Download steps for Qt and QtCreator will fail now, if the source
URL is wrong for some reason. Also the reason will be printed.

Merge branch 'features/continuousIntegrationBuilds' into develop