Force provisioningState to lowercase for comparison.
Force provisioningState to lowercase for comparison.

Signed-off-by: Quentin Pradet <d17611fde61d73f8de1b8b01bc47d446558ccd8e@apache.org>

andrewsomething/libcloud,erjohnso/libcloud,ByteInternet/libcloud,Kami/libcloud,vongazman/libcloud,Scalr/libcloud,apache/libcloud,StackPointCloud/libcloud,erjohnso/libcloud,Scalr/libcloud,andrewsomething/libcloud,vongazman/libcloud,mistio/libcloud,vongazman/libcloud,Kami/libcloud,mistio/libcloud,StackPointCloud/libcloud,pquentin/libcloud,mistio/libcloud,StackPointCloud/libcloud,apache/libcloud,pquentin/libcloud,ByteInternet/libcloud,apache/libcloud,Kami/libcloud,ByteInternet/libcloud,Scalr/libcloud,pquentin/libcloud,erjohnso/libcloud,andrewsomething/libcloud