Fix for 'cannot import name WindowsAzureMissingResourceError'

I've just installed Azure SDK with PIP and got the following error. After a short investigation i found that to be a small naming issue, here is a fix.

Best Regards,

Valentin

$ python azurefs.py /net/azure/ xxx 'XXXXXXXX'
Traceback (most recent call last):
  File "azurefs.py", line 20, in <module>
    from azure.storage import BlobService, WindowsAzureError, \
ImportError: cannot import name WindowsAzureMissingResourceError
$