Revert "Compare AccurateRip to num tracks -1, as last track not being checked"

This reverts commit 70d39feee9db6a85bfe3b4315ff2813f8018cf40.
Revert "Convert drive path from unicode to str when calling cdio.Device"

This reverts commit db6198edba6ddde53ae15f6acdabde9e94897f1d.
Convert device values returned by cdio.get_devices_with_cap from unicode
to str