add support for LibCloudStorage with Django1.7 migration features

[forrestp]

I've tested this with Rackspace via ApacheLibCloud using the following settings:

DEFAULT_LIBCLOUD_PROVIDER = 'rs_test'
LIBCLOUD_PROVIDERS = {
'rs_test': {
'type': 'libcloud.storage.types.Provider.CLOUDFILES_US',
'user': os.environ['RACKSPACE_USERNAME'],
'key': os.environ['RACKSPACE_API_KEY'],
'bucket': 'storages_test'
},
}

I also tested that 'python manage.py makemigrations ' works after making this change (it didn't before).

[forrestp]

I am using apache-libcloud version 0.15.1

[jschneier]

Great, thanks! I'll merge this now.

Can you confirm that libcloud works under Python3?

[forrestp]

According to the PyPi page, libcloud works with Python3. https://pypi.python.org/pypi/apache-libcloud/0.16.0

Due to other incompatible dependencies in my project, it would be difficult for me to test this with Python3. I may have time late next week to figure out a good way to test it separately from my project.

[jschneier]

Fair, thanks a lot.

[forrestp]

You're very welcome. Thanks for reviving this project.