Support for React 16+

Moved react and react-dom libs to dev dependencies to avoid multiple copy issue of react versions.

Added new props: handleSubmit and emptyValueText.

v0.0.9-beta

Updated demo example

Added documentation.

Updates :

• Added documentation.
• Showing examples with codes.
• Added support for on input change event : onInputChange.

Currently, autofocus is not supported :(