Change default log level from DEBUG to INFO

[GiorgioMendieta]

Changes default log level from 0=LOG_DEBUG to 1=LOG_INFO, preventing cluttering the journal.

I think this is useful for end users, during development devs can just open the app with the -l 0 flag anyways.

Closes #1000

[JoonasPitk]

Does this still write at debug level into the .log files? Those would still be useful, but being able to limit system journal spam is definitely needed.

[GiorgioMendieta]

Does this still write at debug level into the .log files? Those would still be useful, but being able to limit system journal spam is definitely needed.

No, log files are written at INFO level by default with this change, unless you specify the DEBUG log level with the flag-l 0 when launching the game.

I still think it is a sensible default for most users. If needed the log level can be changed to DEBUG (or other levels) for development or debugging. This prevents creating huge log files as well depending on the playtime.