CLOUDSTACK-2712: updateHvCapability mapped to serviceOfferingResponse

response object of updateHypervisorCapabilities is set to
ServiceOfferingResponse

Signed-off-by: Prasanna Santhanam <tsp@apache.org>
CLOUDSTACK-2713: StoragePoolResponse for a createTemplate

createTemplate returns a templateresponse and not a storagepool
response. Correcting the mapping to fix API docs.

Signed-off-by: Prasanna Santhanam <tsp@apache.org>