Naive implementation for getting all states of a selection
Merge pull request #22 from Phoenixmatrix/feature/get_multi_states

Naive implementation for getting all states of a selection
Updated onValueChange to return correct oldValue
Merge pull request #23 from brianchitester/master

Updated onValueChange to return correct oldValue
Added unit test for onValueChange
Merge pull request #24 from brianchitester/master

Added unit test for onValueChange
Added input event handler
Merge pull request #25 from brianchitester/master

Added input event handler
Added unit tests and oninput event
Merge pull request #26 from brianchitester/master

Added unit tests and oninput event