Add common configurations into nightly build process

Currently, some of the common configurations are only tested as part of the release process, it is very difficult to detect any bugs that are caused by an unusual Qt configuration. As a result, the release process is slowed down by bugs which have to be fixed at the last minute.
It would be great if the precheck or nightly process could also test some of the most common configurations, for example:

• no SSL
• no GUI/no QML

FYI: janihe