Add tests for custom storage suffix for #1110.
Add tests for custom storage suffix for #1110.

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