0.2

• Support one way binding operator ~> for Driver.
• Support using a single disposeBag for multiple binding operators like:

disposeBag
    ~ viewModel.text <~> textFeild.rx.text
    ~ viewModel.uppercaseText ~> label.rx.text
    ~ viewModel.charactersCount ~> [characterCountLabel1, characterCountLabel2].map { $0.rx.text }