[fixed] Missing PropType Validations

f3ae67e - Define types for properties in CarouselItem.js.
631fa3e - Refactor code using `onAnimateOutEnd`.
d5aa944 - Define types for properties in TabPane.js
a45bca9 - Define types for `multiple` and `value`
c3e54fe - Add prop type for `dropup` in SplitButton.js
b059563 - Define type for `accordion` property
52cd9db - Define type for `eventKey` property in SubNav.js
4baf8b5 - Define type for `pullRight` property in Nav.js