preload_metadata not set when using boto3

[fara]

If you don't have boto in your environment (only boto3) has_boto flag will be set to false in boto.py due to an import error and that will fail the condition check to set preload_metadata to True in the initialization of the mgmt command.
As a consequence collectfast will be slow

[antonagestam]

Oh yeah, that logic looks broken. A quick fix should be to set AWS_PRELOAD_METADATA in your settings.

[fara]

I would not recommend that fix because of this #30
It will make the site painfully slow.