getmail command: optional logging

[skar3]

Added parameter to disable logging, using the script every minute the log spam

[coddingtonbear]

You might not know this, but Python provides tooling allowing you to silence particular loggers out-of-the-box. Check out their docs covering "configuring logging". The logger you would want to adjust is, probably, django_mailbox.management.commands.getmail.

[pfouque]

Looks solved since we've confirmed loglevel are working fine