IObjectStorageProvider.DeleteContainer does not delete objects by default (fixes #141)
CreateVolume returns a Volume, not a bool (fixes #140)
Merge pull request #148 from sharwell/fix-140

CreateVolume returns a Volume, not a bool (fixes #140)
Merge pull request #149 from sharwell/fix-141

IObjectStorageProvider.DeleteContainer does not delete objects by default (fixes #141)