some items in the general script are not correctly migrated from OpenSesame 3 to 4

[dev-jam]

Some items in the experiment properties where reverting back to the previous state when changed.
It looks like code that starts with 'set' was using 'True' and 'False' in the past and is now using 'yes' and 'no'.
These values where not converted when opening an OpenSesame 3 experiment in Opensesame 4 and then saved.
I can manually change them in the general script settings.

The following items had trouble and I had to change them manually:

General settings:
set font_italic False -> no
set font_bold False -> no
set disable_garbage_collection True -> yes

Loop item
set break_if False -> never

I experienced this in all 4.0.x releases in Debian Linux.

[smathot]

Thanks for this!