Factory methods for `Driver` are moved from `Drive` to `Driver`.
Factory methods for `Driver` are moved from `Drive` to `Driver`.

kzaher/RxSwift,ReactiveX/RxSwift,KyoheiG3/RxSwift,hsoi/RxSwift,thanegill/RxSwift,cfraz89/RxSwift,hsoi/RxSwift,cfraz89/RxSwift,kzaher/RxSwift,tottakai/RxSwift,thanegill/RxSwift,hsoi/RxSwift,KyoheiG3/RxSwift,thanegill/RxSwift,kzaher/RxSwift,kzaher/RxSwift,shiratsu/RxSwift,thanegill/RxSwift,KyoheiG3/RxSwift,ReactiveX/RxSwift,cfraz89/RxSwift,tottakai/RxSwift,ReactiveX/RxSwift,shiratsu/RxSwift,cfraz89/RxSwift,hsoi/RxSwift,shiratsu/RxSwift,tottakai/RxSwift