Updating documentation to show that you can also set the maxDate parameter.

Resolves #1922 and #1841

Set hint on TextInputLayout instead of EditText so that it animates properly when you start typing.

From documentation:
* The hint should be set on the TextInputLayout, rather than the EditText. If a hint is specified
 * on the child EditText in XML, the TextInputLayout might still work correctly; TextInputLayout
 * will use the EditText's hint as its floating label. However, future calls to modify the hint will
 * not update TextInputLayout's hint.

…atically (#1972)

* Change RadioButton's colors programmatically

* Update sample to demonstrate changing RadioButton's colors programmatically

Updated version

W/BottomSheetBehavior: BottomSheetBehavior now supports multiple callbacks. `setBottomSheetCallback()` removes all existing callbacks, including ones set internally by library authors, which may result in unintended behavior. This may change in the future. Please use `addBottomSheetCallback()` and `removeBottomSheetCallback()` instead to set your own callbacks.