AzureRT PR S38

Fix a wrong LRO reference issue in the DeleteRoleInstanceByDeploymentSlot API;
Add 'Provisioning' to the RoleInstanceStatus enum;
Add Rebuild APIs; Revert OsVersion change;
Update StorageManagementClient's version header to 2014-06-01;
Add AccountType to Create/Update/Get/List APIs;
Remove 'GeoReplicationEnabled' from the Storage Account Get/List API;
Fix HostedServiceOperations.DeleteAll() documentation.