Incorrect handling rollbar.init() arguments when using LOGGER in Django.

[veryuncommonname]

Hello,

When using rollbar==0.13.18 with django==1.11.11 and passing rollbar via LOGGER, scrub_fields doesn't come as a list; it comes as logging.config.ConvertingList, so in the result dict_merge fall to make a copy of variable and return string '<Uncopyable obj:...' instead of a list.

I see here two possible solutions:

The first is to change dict_merge to correctly process types inherited from list/dict in the case where copy.deepcopy failed.

The second is to obviously handle scrub_fields in rollbar.init().