Fix immediate printing

Signed-off-by: Michael Buesch <m@bues.ch>
Disable OB-temp writing by default

Signed-off-by: Michael Buesch <m@bues.ch>
cli: Add option to enable OB-temp writing

Signed-off-by: Michael Buesch <m@bues.ch>
gui: Add checkbox to enable OB-temp writing

Signed-off-by: Michael Buesch <m@bues.ch>