Added VolumeTransferDirectlyClass, Set several default values for instance's attributs. Fix transfer data with gzip compression. Added transfer_volumes_via_glance and transfer_volumes_directly functions from iscsi to iscsi, added option to config. Changed detect_path file and transfer remote file functions.
Added directly volume transfering functions. Fixed ssh_port in BuilderImporter
Changed name of detect_delta_file func, fixed rbd export command.
Fixed boot_from_volume in vol transfer directly case, changed function sequences in iscsi upload cases and boot_from_volume
Fixed transfer roles, user and tenants