Adding support for newer v3 of Boto storage backend (amazon s3)
Adding support for newer v3 of Boto storage backend (amazon s3)

Note the 3 of Boto version.

Signed-off-by: onekiloparsec <240633aa59d25638de9800ef43a88ad2e208d24d@onekilopars.ec>

melfelr/django-queued-storage,jezdez/django-queued-storage,jazzband/django-queued-storage