Added missing ref to Input in Item.js. Fix for issue #1780. Fix based on issue-comment https://github.com/GeekyAnts/NativeBase/issues/1780#issue-314311286
Added missing ref to Input in Item.js.
Fix for issue #1780.
Fix based on issue-comment https://github.com/GeekyAnts/NativeBase/issues/1780#issue-314311286

GeekyAnts/NativeBase,GeekyAnts/NativeBase,GeekyAnts/NativeBase,GeekyAnts/NativeBase,GeekyAnts/NativeBase