[.14.21] Minor scripting - bootstrap errors are not logged

[Nexela]

Script errors during the bootstrap events (on_init, on_configuration_changed, possibly on_load)are not logged to the logfile. It would be nice to have this for reporting the exact error in other mods without copying by hand or printing the screen.

if the error occurs in on_tick or elsewhere it is correctly written to the log. This can be observed by commenting out the on_init line in the attached mod.

[Rseding91]

Fixed for 0.15.