Changes deployment target for example app.
Changes deployment target for example app.

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