driver: added 'regen_src_uuid' argument to the 'register' method
action/import: Regenerate 'SourceVmUuid' while template registration [GH-113]
driver: removed unnecessary 'version' method.

Because there is attribute with the same name defined in the 'Driver::Meta' class.
action/set_power_consumption: Added PD version constriction [GH-110]

Feature is available only since Parallels Desktop 9