Fixes to shell commands

Hello,

I found some issues with the collectstatic, container_create, and container_info django shell commands.  The credentials were being set before setting the identity type, which was causing pyrax to throw exceptions.  I corrected that by moving the identity_type setting ahead of set_credentials.  The collectstatic command was also still set to use CloudFilesStorage instead of Swiftclient storage, so I changed that.  I also updated setup.py to use the most recent version of pyrax.  I did a quick test of the container_create command and uploaded a file through Django and everything appeared to work for me.

Thanks!