make Gradle run without its daemon

[vorburger]

Once the base #118 (#121) is in, I'll have to remember to follow-up with a minor optimization; cauz this:

./gradlew build
Starting a Gradle Daemon, 1 incompatible and 1 stopped Daemons could not be reused, use --status for details

makes little sense in a short-lived container... there must be some arg to make it launc without daemon.

[vorburger]

there must be some arg to make it launch without daemon

it's ./gradlew --no-daemon ...